Light Scattering Characterization of Polymer Additives and Correlation of Molecular Properties of Polymer Fluids
Final rept. 1 Oct 1987-31 Jan 1991
STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF CHEMISTRY
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In the ARO project, we have succeeded in characterizing a random copolymer of polyisobutyl methacrylate-co-tertbutyl aminoethyl methacrylate, abbreviated as polyiBMA-tBAEMA in polar and protic solvents by means of laser light scattering LLS and viscosimetry. Intra- and intermolecular interactions could be used to explain the aggregation behavior which dominates the rheological properties of a large variety of such polymer solutions, making polyiBMA-tBAEMA a useful polymer additivethickening agent. By adding another polymer which can complex with polyiBMA-tBAEMA, we have found that the polymer can be used as a viscosity enhancer for the polymer additive, polyiBMA-tBAEMA. With sulfonated polystyrenes, the enhancement could reach a factor of 20.
- Polymer Chemistry