Title page for ETD etd-07122007-103944

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
  • Block copolymers Synthesis
  • Polyesters Synthesis
Date of Defense 1993-05-05
Availability restricted

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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