Polymer characterization.This fully functional GPC/SEC system for characterizing copolymers brings together the company's TDA TDA Texas Department of Agriculture TDA Trade and Development Agency TDA Transportation Development Act TDA Tax Deferred Annuity (commonly known as TSA) TDA Tienda (Spanish: store) triple detector array, GPCmax integrated pump, autosampler and degasser module and OmniSEC software for coping with the most demanding copolymer copolymer: see polymer. analyses. The TDA harnesses the power of RI, UV and viscometry vis·com·e·ter n. An instrument used to measure viscosity. Also called viscosimeter. [Short for viscosimeter. or light scattering detectors acting together, with each detector providing complimentary but different information. By ratioing the response from the two concentration detectors, the system corrects the limitations of using a single detector delivering rapid determination of copolymer concentration and a true concentration profile. Through adding the viscometry or light scattering detector, the TDA enables users to obtain molecular weight, molecular size, intrinsic viscosity Intrinsic viscosity  is a measure of a solute's contribution to the viscosity  of a solution. , conformation con·for·ma·tionn. One of the spatial arrangements of atoms in a molecule that can come about through free rotation of the atoms about a single chemical bond. , structure and branching data from their copolymer sample. Maintained in a thermostatically controlled environment, the TDA has the sensitivity and stability to repeatably characterize copolymers even at low concentrations, according to the manufacturer. Data are collected and processed in the OmniSEC software. (Viscotek) Circle 109 on card |
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