Title page for ETD etd-07122007-103944
|Type of Document
||Kiefer, Laura A.
||Synthesis and characterizaton of novel polyester/polysiloxane and polyester/arylphosphine oxide copolymers
|McGrath, James E.
|Riffle, Judy S.
|Taylor, Larry T.
|Ward, Thomas C.
|Wilkes, Garth L.
- Block copolymers Synthesis
- Polyesters Synthesis
|Date of Defense
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)
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