Date of Award

1995

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Chemistry

First Advisor

Paul Russo

Abstract

Gelation of rodlike polymers was studied by a variety of techniques. Fourier transform video microscopy was used to quantitatively study poly(p-phenylenebenzobisthiazole) in sulfuric acid on a preformed gel and as the gelation process occurred. Differential scanning calorimetry was used to determine the extent of the solvent shell surrounding molecules of hydroxypropyl cellulose upon gel formation and melting. Various light scattering experiments were performed on gels made from poly($\gamma$-benzyl-$\alpha$,L-glutamate) in toluene. Some of the analysis is geared towards a percolative type mechanism. The results and some suggestions for further work are presented.

Pages

239

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