Copolymerization of Sec-Butenyl Acetate With Styrene Via Emulsion Polymerization

Document Type

Article

Publication Date

8-1-2007

Department

Polymers and High Performance Materials

Abstract

The incorporation of allylic monomers into highly reactive vinyl polymerizations provides a means to control molecular weight, conversion, and Trommsdorff effect to produce copolymers with desirable performance characteristics. The copolymerization behavior of styrene with sec-butenyl acetate, whose copolymerization properties have not, been reported, is investigated. Copolymers were produced via semicontinuous emulsion polymerization and characterized via NMR, gel permeation chromatography, differential scanning calorimetry, dynamic light scattering, and atomic force microscopy. A high degree of chain termination due to allylic hydrogen abstraction was observed, as expected, with resultant decreases in molecular weight and in monomer conversion. However, high conversions were achieved, and it was possible to incorporate high percentages of the allylic acetate comonomer into the polymer chain. Copolymer thermal properties are reported. (c) 2007 Wiley Periodicals, Inc.

Publication Title

Journal of Polymer Science Part A-Polymer Chemistry

Volume

45

Issue

15

First Page

3191

Last Page

3203

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