Type of Document	Dissertation
Author	Kiefer, Laura A.
URN	etd-07122007-103944
Title	Synthesis and characterizaton of novel polyester/polysiloxane and polyester/arylphosphine oxide copolymers
Degree	PhD
Department	Chemistry
Advisory Committee	Advisor Name Title McGrath, James E. Committee Chair Riffle, Judy S. Committee Member Taylor, Larry T. Committee Member Ward, Thomas C. Committee Member Wilkes, Garth L. Committee Member
Keywords	Block copolymers Synthesis Polyesters Synthesis
Date of Defense	1993-05-05
Availability	restricted
Abstract Novel, high molecular weight poly(dimethylsiloxane) / cycloaliphatic polyester segmented copolymers were prepared and characterized. Specifically, polyesters based on dimethyl 1,4-cyclohexane dicarboxylate and 1,4-butanediol were employed. The copolymers were synthesized via a melt process using a high trans content isomer which afforded semi-crystalline morphologies. Aminopropyl terminated poly(dimethylsiloxane) oligonlers of controlled molecular weight were synthesized and then end capped with excess diester to form a diester terminated amide linked oligomer. The latter was then incorporated into the copolymer via melt transesterification step reaction segmented copolymerization. The molecular weight of the polysiloxane and chemical composition of the copolymer were systematically varied to prepare a series of segmented polyester / poly(dimethylsiloxane) copolymers.
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