Synthesis, characterization, and application of semi-interpenetrating liquid crystalline polymer networks LCP/PS

✍ Scribed by Xiongyan Zhao; Xiao Hu; Chee Yoon Yue; Xinyu Du; Qixiang Zhou

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 361 KB
• Volume: 76
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(20000516)76:7<1141::aid-app18>3.0.co;2-n

✦ Synopsis

Attempts to extend the IPN technology to liquid crystalline polymer (LCP) systems have been made in search for a new approach for enhancing the compatibility of liquid crystalline polymer with engineering thermoplastics. A new type of interpenetrating polymer network based on liquid crystalline polymer : semi-interpenetrating liquid crystalline polymer network comprising liquid crystalline polymer PET/60PHB (LCP) and crosslinked polystyrene (PS) (for short: semi-ILCPN LCP/PS) has been successfully prepared. The compatibility and thermal properties of the semi-ILCPN LCP/PS with different amount of crosslinking agent were investigated by FTIR, SEM, DSC, and TGA, respectively. Furthermore, the possible application of the semi-ILCPN LCP/PS as a new kind of compatibilizer in PPO/LCP blends was also studied and discussed. Well-compatibilized PPO/LCP composites with considerably improved mechanical properties were obtained.