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Studies on molecular composite. I. Processing of molecular composites using a precursor polymer for poly(p-phenylene benzobisthiazole)

✍ Scribed by Hiroshi Akita; Tatsuya Hattori

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 258 KB
Volume: 37
Category: Article
ISSN: 0887-6266
DOI: 10.1002/(sici)1099-0488(19990201)37:3<189::aid-polb2>3.0.co;2-7

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✦ Synopsis

The blending of a precursor polymer for poly(p-phenylene benzobisthiazole) (PBZT) with various matrix polymers was attempted, followed by heat conversion of the PBZT precursor polymer to obtain molecular composites consisting of PBZT and the matrix polymers. A higher concentration of mixed solution using organic solvent and milder conditions to remove the solvent could be applied to blend the polymers using the precursor polymer in place of rodlike PBZT. The dispersibility of PBZT in the matrix polymer in the blended materials obtained depended on the ability to form intermolecular hydrogen bridges between the PBZT precursor and the matrix polymer. In particular, the blended material, obtained using a nonthermoplastic aromatic polyamide as the matrix polymer having a molecular structure similar to that of the PBZT prepolymer, was transparent and showed excellent reinforcing efficiency of PBZT.

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