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Synthesis and evaluation of high-molecular weight diphenyl oxide and diphenyl sulfide novolacs

✍ Scribed by Gen-Ichi Konishi; Yamato Nojiri; Toshiki Matsuo; Tadamasa Nemoto; Kengo Asai; Kentaro Sumi; Yoshiaki Nakamoto

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
501 KB
Volume
118
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The preparation and characterization of high‐molecular weight diphenyl oxide‐ and diphenyl sulfide‐novolacs are described. The polymerization of diphenyl oxide with 2 equivalence of formaldehyde proceeded to give the corresponding polymer (2) (M~n~: 160,000, M~w~/M~n~: 29.1) in good yield. Further, an ultra high‐molecular weight fraction (M~w~ > 1,000,000) was observed in the GPC trace of 2. The developed polymers can be considered as a new class of aromatic polymers that exhibit both novolac‐like and engineering plastic properties and are thus promising compounds for material‐engineering applications. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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