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Fluorinated poly(butylene terephthalate): Preparation and properties

✍ Scribed by M. Toselli; F. Pilati; M. Fusari; C. Tonelli; C. Castiglioni

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
459 KB
Volume
54
Category
Article
ISSN
0021-8995

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✦ Synopsis

Fluorinated poly(buty1ene terephthalate) (PBT) can be easily prepared using a telechelic perfluoropolyether (PFPE) as a comonomer. The functional groups of the PFPE react completely with other monomers, but the distribution of the PFPE blocks is not homogeneous and in the final polymeric material there is a significant fraction of PFPE bonded to very short segments of polyester. Due to the very poor miscibility of PFPE and PBT, the PFPE is present as a separate phase dispersed in an almost pure P B T matrix. Accordingly, both thermal and mechanical properties of P B T are little affected by the PFPE. The presence of PFPE induces a slight improvement on the fracture resistance and on surface properties such as wear resistance and coefficient of friction.

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