Mechanical Properties and Morphology of Polymer Blends of Poly(ethylene terephthalate) and Semiflexible Thermotropic Liquid Crystalline Polyester

Two thermotropic liquid crystalline polyesters (TLCPs) with long flexible spacer groups in the main chain were prepared by melt polymerization: one was a homopolymer with only decane groups (LCPHO) and the other was a copolymer with hexane or decane groups (LCPCO) between mesogen units. These polyesters were blended with a matrix polymer of poly(ethylene terephthalate) (PET). Scanning electron microscopy (SEM) revealed the excellent interfacial adhesion between polyester and PET, and the large aspect ratio of polyester microfibrils in the blend fiber made by extruding and drawing the blend through a die. The aspect ratio was estimated by using the modified Halpin-Tsai equation. The fiber with LCPHO showed more extensive fibril formation than that with LCPCO.
Publisher
Wiley-Blackwell
Issue Date
1992
Language
ENG
Keywords

FLEXIBLE SPACER; MAIN CHAIN; COMPOSITES

Citation

POLYMER ENGINEERING AND SCIENCE, v.32, no.1, pp.73 - 79

ISSN
0032-3888
URI
http://hdl.handle.net/10203/63698
Appears in Collection
NE-Journal Papers(저널논문)
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