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A Study on the Reactive Compatibilization of a PBT/LCP Blend: Catalyst Effect

  • J. Y. Lee , J. Jang , S. M. Hong , S. S. Hwnag , Y. Seo and K. U. Kim
Published/Copyright: June 3, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 12 Issue 1

Abstract

The in situ compatibilization of poly(butylene terephthalate) (PBT) with liquid crystalline polymer (LCP) via catalyzed transesterification reaction was examined through thermal, rheological, morphological and mechanical studies. The addition of catalyst, dibutyltindilaurate, was found to promote the transesterification between PBT and LCP. Maintenance of high vacuum environment was required to produce the high molecular weight copolymers in the reactor, which, acting at the interface, diminished the size of the dispersed phase (LCP) and enhanced interfacial adhesion that led to an early increase of the flexural strength. Flexural strength was reduced after long time reaction due to the chain scission. Transesterification confirmed by NMR spectroscopic analysis played a major role in the interchange process.

* Mail address: Y. Seo, Polymer Processing Laboratory, Korea Institute of Science and Technology (KIST), P.O. Box 131, Cheongryang, Seoul, Korea.
Received: 1996-5-20
Accepted: 1996-6-27
Published Online: 2013-06-03
Published in Print: 1997-03-01

© 1997, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Editorial
  5. Screw Extrusion
  6. Upgrading Recycled HDPE by Rheometer-Controlled Crosslinking
  7. Blend Morphology of Linear Low Density Polyethylene and Polystyrene in a Non-Intermeshing Twin Screw Extruder
  8. Mixing
  9. A Study on the Reactive Compatibilization of a PBT/LCP Blend: Catalyst Effect
  10. Influence of Processing Temperature on the Morphological and Mechanical Properties of a PC/TLCP Blend
  11. Fibers
  12. The Effect of Drawing and Annealing Conditions on the Structure and Properties of Bacterial Poly(3-hydroxybutyrate-co-3 hydroxyvalerate) Fibers
  13. Numerical Analysis of Cooling Air Systems in Film Blowing
  14. Moulding
  15. On the Simulation of Thermoplastic Injection Moulding Process
  16. Molding
  17. Rheology of Layered Thermoplastic Matrix Composites during Compression Molding
  18. Studies of the Trans-Quinacridone Nucleation of Poly-(ethylene-b-propylene)
  19. The Role of Long Molecules and Nucleating Agents in Shear Induced Crystallization of Isotactic Polypropylenes**
https://doi.org/10.3139/217.970019

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Editorial
  5. Screw Extrusion
  6. Upgrading Recycled HDPE by Rheometer-Controlled Crosslinking
  7. Blend Morphology of Linear Low Density Polyethylene and Polystyrene in a Non-Intermeshing Twin Screw Extruder
  8. Mixing
  9. A Study on the Reactive Compatibilization of a PBT/LCP Blend: Catalyst Effect
  10. Influence of Processing Temperature on the Morphological and Mechanical Properties of a PC/TLCP Blend
  11. Fibers
  12. The Effect of Drawing and Annealing Conditions on the Structure and Properties of Bacterial Poly(3-hydroxybutyrate-co-3 hydroxyvalerate) Fibers
  13. Numerical Analysis of Cooling Air Systems in Film Blowing
  14. Moulding
  15. On the Simulation of Thermoplastic Injection Moulding Process
  16. Molding
  17. Rheology of Layered Thermoplastic Matrix Composites during Compression Molding
  18. Studies of the Trans-Quinacridone Nucleation of Poly-(ethylene-b-propylene)
  19. The Role of Long Molecules and Nucleating Agents in Shear Induced Crystallization of Isotactic Polypropylenes**
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