Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Deformation Behavior and Nucleation Activity of a Thermotropic Liquid­Crystalline Polymer in Poly(butylene terephthalate)-Based Composites

  • Kim Jun Young (Department of Fiber and Polymer Engineering, College of Engineering, Hanyang University) ;
  • Kang Seong Wook (Department of Fiber and Polymer Engineering, College of Engineering, Hanyang University) ;
  • Kim Seong Hun (Department of Fiber and Polymer Engineering, College of Engineering, Hanyang University) ;
  • Kim Byoung Chul (Department of Fiber and Polymer Engineering, College of Engineering, Hanyang University) ;
  • Shim Kwang Bo (Department of Ceramic Engineering, CPRC, College of Engineering, Hanyang University) ;
  • Lee Jung Gyu (SKC Film R&D Center)
  • Published : 2005.02.01
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Abstract

Polymer composites based on a thermotropic liquid-crystalline polymer (TLCP) and poly(butylene terephthalate) (PBT) were prepared using a melt blending process. Polymer composites consisting of bulk cheap polyester with a small quantity of expensive TLCP are of interest from a commercial perspective. The interactions between the PBT chains and the flexible poly(ethylene terephthalate) (PET) units in the TLCP phase resulted in an improvement in the compatibility of PBT/TLCP composites. TLCP droplets deformed and fragmented into smaller droplets in the PBT/TLCP composites, which resulted in TLCP fibrillation through the effective deformation of the TLCP droplets. The nucleation activities of the PBT/TLCP composites increased by adding even a small amount of the TLCP component.

Keywords

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