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Rubber Division plans meeting. (Meetings).

San Francisco, CA, will host the Rubber Division of the American Chemical Society's 163rd Spring Technical Meeting, to be held April 28-30 at the Westin St. Francis Hotel.

Eleven symposia are scheduled for the meeting and will include a colloquium co-sponsored by the Rubber Recycling Topical Group and the Rubber Manufacturers Association titled "Moving toward higher value-added uses of recycled rubber": the Paul Flory Symposium on Network structures; Neutrons for filled-polymer-composite research: Advances in polymer technology; Failure testing of rubber; Recent developments in rubber analysis: Advances in rubber chemicals; Advances in silica filler technology; Polymeric materials in high technology applications: Truck/off-road tires; and Medical applications and environmental issues.

Dr. Graham J. Lake, visiting professor at the University of East London's Barking Campus in Essex, England, was selected to receive the Rubber Division's Charles Goodyear Medal. The Rubber Division's Science & Technology Awards Banquet will be held on Monday, April 28 at the Westin St. Francis Hotel.

The Charles Goodyear Medal is awarded by the Rubber Division for outstanding invention, innovation or development which has resulted in a significant change or contribution to the nature of the rubber industry.

Dr. Lake was the principal physicist for the Malaysian Rubber Producers' Research Association prior to his retirement and becoming a visiting professor. He is internationally recognized as a leading researches on the failure of rubber and rubber products. Of particular note is his discovery (with Dr. Peter Lindley) of the minimum tearing energy needed for any mechanical crack propagation and its interpretation (with Dr. Alan Thomas/ in molecular terms. This is said to be the only quantitative theory that successfully predicts the strength of a material from molecular parameters and has been used to predict the rate of groove cracking of tires in service.

Among Lake's many other significant achievements in failure analysis are his (with Dr. Breitenbach) prediction of the rate of growth of fatigue cracks in laminated cord-rubber composites used in predicting fatigue failure in tires, resistance of rubber to cutting, time-dependence of adhesion and the strength of rubber-to-metal bonds. He is a recipient of the 1995 Colwyn Medal from the Institute of Materials in London.

Dr. Walter H. Waddell, applications technical development manager at ExxonMobil Chemical, will receive the Melvin Mooney Distinguished Technology Award. Sponsored by Crompton/ Uniroyal Chemical, this award is presented for exceptional technical competency of an individual who has made significant and repeated contributions to rubber science and technology.

Dr. Waddell has over 100 publications in refereed journals, ranging from various areas in biochemistry, photo-chemistry, chemistry of silica and polymer applications. He holds 15 patents, was awarded five Trade Secrets while a senior chemist for Goodyear Tire & Rubber. and his work in silica chemistry and butyl polymers is said to have become basic reading for researchers in the tire industry.

Dr. Waddell has numerous original research discoveries such as establishing non-destructive spectroscopic techniques to characterize rubber surfaces, for which he was the first to apply laser desorption mass spectroscopy to directly characterize the surface of rubber. Another area of note is his research in understanding the chemistry and use of brominated isobutylene-co-para-methylstyrene (BIMS) in high performance applications for tires, which combined with his unique experiment to optimize the polymer for black sidewall application properties.

Dr. Waddell's awards include the 1993 Rubber Division Sparks-Thomas Award for outstanding contributions by a young investigator in the field of elastomer chemistry and his being selected as the 1995 Distinguished Corporate Inventor. Dr. Waddell also serves as the Rubber Division's chair of the Program Planning Committee for technical symposia.

Dr. Bryan Willoughby, formerly a research manager for Rapra, will receive the Fernley H. Banbury Award. Sponsored by Farrel, this award is presented for developing production equipment, control systems and instrumentation widely used in the manufacture of rubber or rubber-like articles. Dr. Willoughby has published hundreds of technical papers in refereed journals and holds numerous patents on polyurethane and resin curing catalysis.

Among Willoughby's inventions is the scanning vibrating needle curemeter, a theological device commercialized by Rapra and now in use worldwide as a quality analysis tool for setting liquid systems. Another innovation is Willoughby's development of the foam test unit which is said to have helped the urethane foam segment of the rubber industry derive formerly unknown details of the combined processes of expansion and cure.

Dr. Sadhan K, De, a professor at the Rubber Technology Center of the Indian Institute of Technology, will receive the George Stafford Whitby Award for Distinguished Teaching and Research. Sponsored by Cabot, this award is presented for distinguished innovative inspirational teaching and research in chemistry and polymer science.

Dr. De has published over 260 research papers in international journals and has co-authored five books. His research has included areas such as self-crosslinking polymer blends, ionomers and ionic thermoplastic elastomers, rubber recycling, short-fiber-rubber composites and SEM fractography. His work in self-crosslinking is said to have contributed to opening new areas of research, for preparing and investigating new polymer blend compositions with modified and improved properties.

An educational short course on "Introduction to rubber technology" will take place on Monday, April 28. This course is designed for those new to the rubber industry, working in sales, administration, human resources or any other non-technical area seeking basic, easy-to-understand information on the jargon of the rubber industry.

This course will be taught by R.J. Del Vecchio of Technical Consulting Services. Topics will include polymers; how rubber is different from plastic; how recipes for rubber compounds are created and why; what is involved in mixing, processing and vulcanizing of rubber; and testing, specifying and quality control of rubber products.

Registration for this course costs $295 for Rubber Division members and $345 for non-members, and will include a copy of the 55-page booklet beginner's guide to rubber technology."

The Suppliers Cooperative Reception will be held on Monday, April 28 from 5:30 until 6:30. The 25 Year-Club Luncheon will be held at 11:30 on Tuesday, April 29.

The Rubber Division's Business and Awards Meeting will be held on Wednesday, April 30 at 11 a.m. The Rubber Division will present the Distinguished Service Award to William Klingensmith.

The technical program for the 163rd Spring Technical Meeting is as follows:

Monday, April 28--Session A Paul Flory Symposium: Network structures

Dietmar Goritz, University of Regensburg, chair.

(1) Elastic instabilities in rubber: Aneurysms, wrinkles and knots. A.N. Gent, University of Akron.

(2) New insight into molecular orientation and induced crystallization in rubber under uniaxial deformation by in-situ synchrotron x-ray diffraction. Shigeyuki Toki, Igors Sics, Shaofeng Ran and Benjamin S. Hsiao, State University of New York at Stony Brook.

(3) Fatigue life of double network elastomers. C.M. Roland and P.G. Santangelo, Naval Research Laboratory.

(4) Study of vulcanization and degradation chemistry in natural rubber by solid state C-13 NMR and physical property measurements. Makio Mori, Yokohama Rubber, Japan.

Monday, April 28--Session B Symposium--Advances in polymer technology

Yuji Hongu, JSR Europe, and Vipin M. Kothari, Thermo-O-Link, co-chairs.

(5) Synthesis, characterization and properties of three-armed, star-branched tapered block copolymers of styrene and butadiene: New thermoplastic elastomers. Roderic P. Quirk and Sergio A. Moctezuma, University of Akron.

(6) The effect of molecular weight on properties of fluoroelastomers cured with bisphenol AF. Donald F. Lyons, DuPont Dow Elastomers LLC.

(7) Synthesis and characterization of A-[OMEGA]-dihydroxyl-telechelic polyisobutylene via living carbocationic initiation and coupling. Judit E. Puskas and Jingshe Song, University of Western Ontario, Canada.

(8) The effect of composition and processing conditions on the morphology and properties of thermoplastic elastomer blends of SEBS/PP/oil and dynamically vulcanized EPDM/PP/oil. Pratip Sengupta and J.W.M. Noordermeer, University of Twente, The Netherlands.

(9) Vinyl enchainment in SSBR polymerization: Steric and electronic effects. Craig W. Burkhart and Steven K. Henning, Goodyear Tire & Rubber.

(10) Effect of casting solvents on the properties mid higher-order structure of viologen type poly(oxytetramethylene) ionene elastomer. Yuki Ikeda, Makoto Ikeda, Takeshi Murakarui, Norihisa Terasawa, Hiroshi Urakawa and Kanji Kajiwara, Kyoto Institute of Technology, Japan.

Monday, April 28--Session C Symposium--Advances in rubber chemicals

Andrew L. Tisler, Rhein Chemie, chair.

(11) Softening NR compounds: A comparison of methods used by the industry to increase productivity of NR compounds by various methods of softening. Fred Ignatz-Hoover and Byron H. To, Flexsys America, LP.

(12) Plasma polymerization of sulfur to decrease the blooming effect on rubber mixtures and its effect on rubber vulcanization with different accelerators. S. Borros and E. Vidal-Escales, Universitat Ramon Llull, Spain; and W.J. van Ooij, University of Cincinnati.

(13) Crosslink reaction of polyalcohol accelerated vulcanization for chlorosulfonated polyethylene. D. Nichetti and A. Bianchetto, Chiorino SpA, Italy.

(14) Effect of carbon black on cross-linking. Ginger Lee, Goodyear Tire & Rubber, A.N. Gent, University of Akron; and J.A. Hartwell, ATK Tactical Systems LLC.

(15) Use of coagents for adhesive and dynamic property improvements in peroxide-cured polyisoprene. Clay B. McElwee and Joe Burke, Sartomer.

(16) Structure and properties of EVM vulcanizates reinforced by in situ prepared sodium methacrylate. Yinxi Zhang, Aihua Du, Zonglin Peng and Yong Zhang, Shanghai Jiao Tong University, China.

Monday, April 28--Session A Paul Flory Symposium--Network structures

Dietmar Goritz, University of Regensburg, chair.

(17) Polymer-solvent interactions in uncrosslinked and crosslinked polymer systems. Robert H. Schuster, Deutsches Institute fur Kautschuktechnologie e.V., Germany.

(18) Entanglements in polymer networks. Michael Lang, Wolfgang Michalke, Stefan Kreitmeier and Dietmar Goritz, University of Regensburg, Germany.

(19) Mechanisms of nonlinear viscoelasticity for filled elastomers and nano-filled polymer melts. S.S. Sternstein and Ai-Jun Zhu, Rensselaer Polytechnic Institute.

(20) Analysis of network structures in filled elastomers by amplitude dependent measurements under mono-and bimodal sinusoidal deformation. Claus Wrana and Carsten Fischer, Bayer AG, Germany; and Volker Hortel, Continental AG, Germany.

(21) Investigation of mechanical and fracture mechanical properties of elastomers filled with precipitated silica and nanofillers based upon layered silicates. Katrin Reincke and Wolfgang Grellmann, Martin Luther University of Halle-Wittenberg, Germany; and Gert Heinrich, Continental AG, Germany.

Monday, April 28--Session B Symposium--Advances in polymer technology

Yuji Hongu, JSR Europe, and Vipin M. Kothari, Therm-O-Link, co chairs.

(22) Simultaneous control of 1,4-cis selectivity and molecular weight of polymer in polymerization of butadiene with Co(acac)3/MAO catalyst. Kyoshi Endo and Naoyoshi Hatakeyama, Osaka City University, Japan.

(23) Quaternary ammonium BIMS ionomers. Andy H. Tsou, Ilan Duvdevani and Pawan K. Agarwal, ExxonMobil Chemical.

(24) New fluoroelastomer developments for aerospace sealing applications. Eric Thomas, DuPont Dow Elastomers.

(25) The effects of dynamic vulcanization on the morphology, rheology and processing of TPVs and their nanocomposites. Hermant Thakkar and Lloyd Goettler, University of Akron.

(26) How effective is flow simulation software for predicting critical parameters in the injection molding of thermoplastic elastomers? Carol M.F. Barry, Joey L Mead, Rohan Dave, Siddhartha S. Desai and Nupur Patel, University of Massachusetts Lowell.

(27) Comparative evaluation of flexible-TPO/TPE compounds of ethylene/ 1-octene and ethylene/1-butene elastomers. Avi C. Gadkari, DuPont Dow Elastomers LLC.

(28) Elastomeric branched poly(ethylene oxide) as a matrix for functionality materials. Shinzo Kohjiya, Kyoto University, Japan: and Yuko Ikeda, Kyoto Institute of Technology, Japan.

Monday, April 28--Session C Contributed papers

Kent L. Chasey, ExxonMobil Chemical, moderator.

(29) Novel elastomeric coatings for use on rubber components. James R. Halladay and Tejbans S. Kohli, Lord.

(30) Low molecular weight paraffinic oils in EPDM sponge and dense applications. Anna Maria Bacciarelli and Steven Yu, Cooper Standard Ltd., Canada.

(31) Advancements in EPDM sponge for automotive weatherstrips: Meeting the changing needs of OEMs around the world. Graham Choonoo, DSM Elastomers Americas; and Minoru Hatta, DSM Japan; and Tommy Odenham, DSM Elastomers NV.

(32) New liquid silicone rubber sponge having open-ceil structure. Noriyuki Meguriyo and Nobumasa Tomizawa, Shin-Etsu Chemical, Japan; and Susumu Sekiguchi, Shincor Silicones.

(33) Effect of carbon black loading on electrospun butyl rubber nonwoven mats, Nantiya Viriyabanthorn, Jamila Shawon, Joey L. Mead and Ross G. Stacer, University of Massachusetts Lowell.

(34) A new approach to preparation of water-swelling rubber. Yinxi Zhang, Wentan Ren, Zonglin Peng and Yong Zhang, Shanghai Jiao Tong University, China.

Tuesday, April 29--Session A Colloquium--Moving toward higher value-added uses of recycled rubber Michael Blumenthal, Rubber Manufacturers Association, and John G. Troutman, Midwest Elastomers, co-chairs.

(I) Factors impacting the ground rubber market. Michael Blumenthal. Rubber Manufacturers Association.

(II) ASTM standards and testing. Krishna C. Baranwal, Akron Rubber Development Laboratory.

(III) Quality assurance as a value added for recycled polymers. Michael W. Rouse, Rouse Rubber industries.

(IV) Recyclate use in rubber compounds. William Klingensmith, Akron Consulting.

(V) Recycled rubber: A processor's viewpoint. John G. Troutman, Midwest Elastomers.

Tuesday, April 29--Session B Symposium--Truck/off-the-road tires

M. Brendan Rogers, ExxonMobil Chemical, chair.

(35A) Truck industry trends and the impact on tires. Chuck Yurkovich, Goodyear Tire & Rubber.

(35) Halobutyl innerliners for truck/ off-the-road tires--a review. Glenn E. Jones, ExxonMobil Chemical.

(36) Service life prediction for elastomeric tire components. Abraham Pannikottu, Akron Rubber Development laboratory; and Ion S. Gerhardt, University of Akron.

(37) Materials advances in formulation of on/off road truck tire treads. Thomas C. Hodge, Michelin Americas Research.

(38) A fundamental review of cut and chip testing for OTR tread compounds. David L. Schwarz and Donald W. Askea, Smithers Scientific Services.

Tuesday, April 29--Session C Symposium--Medical applications and environmental issues

Martin L. Engelhardt, Yokohama Tire, chair.

(39) Biorubbers. Joseph P. Kennedy, University of Akron.

(40) Novel thermoplastic elastomers for biomedical application. Judit E. Puskas and Yaohong Chen, University of Western Ontario, Canada.

(41) Preservation of enzymes in electrospun nanofibers. Daniel J. Smith, Hamdan Al-Sheheri, Laura Hansen and Darrell Reneker, University of Akron.

Tuesday, April 29--Session D Contributed papers

Tomasz Mroczowski, R.T. Vanderbilt, chair.

(42) Mechanistic study of the role of one-component resins in rubber-to-metal bonding in tires. Pankaj Y. Patil and Wim J. van Ooij, University of Cincinnati.

(43) Effect of compound ingredients on adhesion between rubber and brass-plated steel cord. Takeshi Hotaka and Yasuhiro Ishikawa, Yokohama Rubber, Japan; and Kunio Mori, Iwate University, Japan.

(44) Rubber/fiber interactions during the tearing of Neoprene coated polyester fabrics. Z. Tao, Julie Chen, J.L. Mead and Ross G. Stacer, University of Massachusetts Lowell.

(45) Constitutive modeling of rubber coated fabric's mechanical behavior. Samira Farboodmanesh, Julie Chen, Joey L. Mead and Karl White, University of Massachusetts Lowell.

Tuesday, April 29--Session A Research Colloquium

Rex P. Hjelm, Los Alamos National Laboratory, chair.

(VI) Overview of the neutron scattering program in materials science and the LANSCE user program. Shenda M. Baker, Harvey Mudd College.

(VII) Small-angle scattering and filled polymer composites. Lise Arleth, Los Alamos National Laboratory.

(VIII) Neutron rcflectometry: Polymer surface and interfacial structure. Jarek Majewski, Los Alamos National Laboratory.

(IX) Neutron diffraction of the structure of fillers. Yusheng Zhao, Los Alamos National Laboratory.

(X) Investigation of microscopic dynamics in polymers by cold neutron spectroscopy. Margarita Russina, Los Alamos National Laboratory.

(XI) Molecular vibrational spectroscopy and polymer dynamics with inelastic neutron scattering. Luke L. Daemen, Los Alamos National Laboratory.

Tuesday, April 29--Session B Symposium--Truck/off-the-road tires M. Brendan Rodgers, ExxonMobil Chemical, chair.

(46) Review of processing promoters for improved truck and off-the-road compound processing. Andrew L. Tisler, Rhein Chemie.

(47) Getting more truck tire mileage with advanced fillers. David C. Novakoski, Jim Shell, Ping Zhang and Steve Laube, Cabot.

(48) New reinforcing materials for the rising tire performance demands. Hans-Detlef Luginsland and Werner Niedermeier, Degussa AG.

(49) Dynamic contact of tires with road tracks. Manfred Klueppel, Deutsches Institut fur Kautschuktechnologie e.V., Germany.

(50) Using state-of-the-art LC/NMR/ MS analytical techniques for sulfidosilane material characterization. Shawn K. Mealev, Chad A. Buesing, John M. Gohndrone, William C. Maki, Hongjun Yue, Michael W. Backer and Bryan Thomas, Dow Coming: and Mark Chaykovsky and Pat Wilkinson, Bruker BioSpin.

(51) Use of polymer-bound pre-dispersed chemicals in tire retread compounding. Ckandrasekaran R. Pillai, Polymer Composites LLC; and Sin Slew Weng, Sin Rubtech Consultancy, Malaysia.

(52) Effective process for precuring tire components. Bruce Thorburn, NHV-America.

Tuesday, April 29--Session C Symposium--Medical applications and environmental issues

Martin L. Engelhardt, Yokohama Tire, chair.

(53) The emergence of the domestic natural rubber industry: Physical, chemical and biological properties of guayule natural rubber latex. Jeffrey A. Martin, consultant; and Katrina Cornish, USDA-ARS-WRRL.

(54) Comparative study of metalocene polymers versus flexible PVC for medical tubing market. Dan G. Moldovan, DuPont Dow Elastomers LLC.

(55) The Heever depolymerization process--a novel approach to scrap tire recycling. Alan Shirley, Heever Rubber Reclamation Ltd.

(56) Is there life after retirement from the rubber/elastomer field? Andrew P. Foldi, consultant.

Wednesday, April 30--Session A Symposium--Advances in silica filler technology

Syed K. Mowdood, Pirelli Tire LLC, chair.

(57) Silica filler as a crosslinking agent for functionalized rubbers: Role of coupling agents. S.K. De, Indian Institute of Technology, India.

(58) On the filler flocculation in silica-filled rubbers. Part II. Filler flocculation and polymer-filler interaction. Chenchy J. Lin, T.E. Hogan and W.L. Hergenrother, Bridgeston/Firestone Research.

(59) Moisture effects on TESPDSilica/CB/SBR compounds. Kwang Jea-Kim and John VanderKooi, Struktol Company of America.

(60) Effect of organomontmorillonite modified by different intercalation reagents on the properties of EPDM/organomontmorillonite nanocomposites. Yong Zhang, Hua Zheng, Zonglin Peng and Yinxi Zhang, Shanghai Jiao Tong University, China.

(61) Numerical simulation of mechanical properties evolution in a rotocuring process. D. Nichetti, Chiorino SpA, Italy.

(62) Preparation and properties of inorganic-organic rubber nanocomposites. Anil K. Bhowmick and S. Sadhu, Indian Institute of Technology, India.

Wednesday, April 30--Session B Symposium--Testing of rubber

Wesley A. Wampler, Sid Richardson Carbon, chair.

(63) Rapid polymer identification in cured/filled materials. Tsuey Ing Shaw, Denver D. Werstler, Art W. Wilde and Ed L. Johnson, Goodyear Tire & Rubber.

(64) Analysis of compositional distribution in brominated isobutylene elastomers. Frantisek Svec and Jean M.J. Frochert, University of California; and Ilan Duvdevani, ExxonMobil Chemical.

(65) Filler phase distribution in isobutylene-based elastomer compounds. Walter H. Waddell and Andy H. Tsou, ExxonMobil Chemical.

(66) Using FTIR spectroscopy to monitor antioxidant behavior in rubbers. Jack L. Koenig, Case Western Reserve University.

(67) Fractography of tire tread separations. John W. Daws, Exponent.

(68) Analysis of contact stresses of a rubber block and their effect on tire heel/toe wear. Ben Wen and Joel J. Lazeration, Goodyear Tire & Rubber.

(69) Fatigue of cord-rubber composites: V. Cord reinforcement effect. J.H. Song and F. Costanzo, Pennsylvania State University; and B.L. Lee, Air Force Office of Scientific Research.

Wednesday, April 30--Session C Contributed papers

Andy H. Tsou, ExxonMobil Chemical, chair.

(70) The ultimate way to natural rubber processing--high efficiency and good dynamic properties with a zinc free novel processing additive. K.-H. Meriting, M. Hensel and H. Umland, Schill + Seilacher Struktol AG, Germany.

(71) Double networks of cis-l,4-polyisoprene. G.R. Hamed and K. Umetsa, University of Akron.

(72) On frictional characterization of elastomers and elastomeric composites. Maya Scherbakov, Goodyear Tire & Rubber.

(73) Controlling abrasion resistance by BIMS/BR blend composition and cure state. Mun F. Tse, ExxonMobil Chemical; K.O. McElrath, Carbon Nanotechnologies; and S. Kettl, consultant.

(74) Towards a mathematical model of the scanning vibrating needle curemeter. Bryan G. Willoughby, consultant; and David J. Allwright, Oxford Centre for Industrial & Applied Mathematics, U.K.

(75) On characterization of anisotropic elastomeric materials for structural analysis. Mark R. Gurvich, United Technologies Research Center.

Wednesday, April 30--Session D Contributed papers

Michel Gerspacher, Sid Richardson Carbon, moderator

(76) The effect of hydrostatic pressure on the viscoelastic properties of siloxane polymers. C.M. Roland, Naval Research Laboratory; and M. Paluch and S. Pawlus, Silesian University, Poland.

(77) Rheology of PVC Plastisol--X. Viscosity aging, mechanisms and resin types. N. Nakajima, University of Akron; and E.R. Harrell, Polymer Diagnostics,

(78) Using a novel capillary rheometry technique to investigate two families of commercial thermoplastic valcanizates (TPV). Jean L. Leblanc and Thoranit Navarat, University P.&M. Curie, France.

(79) FFIR spectroscopic studies on curing of brominated poly(isobutylene)-co-4-methylstyrene). Donghang Xie, Hsien C. Wang and Molly W. Johnston, ExxonMobil Chemical.

(80) A continuous devulcanization method. P.K. Freakley, Loughborough University, U.K.; and J.B. Fletcher, Carter Bros. Ltd., U.K.

(81) Study on the waste tire powder/thermoplastic blends. Jin Kuk Kim, Sung Hyo Lee and Sung Hyuk Hwang, Gyeongsang National University, Korea.

Further information on the 163rd Spring Technical Meeting of the Rubber Divison, ACS, is available from the Rubber Division (330) 972-7814.
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