Thermosetting poly(siloxane-diphenylbutadiyne) with readily tunable glass transition temperature and high thermal stability

摘要

A poly(siloxane-diphenylbutadiyne) exhibiting thermosetting properties, a highly tunable glass transition temperature (Tg), and very high thermal and thermo-oxidative stability. In one embodiment, the poly(siloxane-diphenylbutadiyne) is a poly(tetrasiloxane-diphenylbutadiyne). The present subject matter also relates to a method of synthesizing the poly(tetrasiloxane-diphenylbutadiyne).

主权项

1. A poly(siloxane-diphenylbutadiyne) comprising the formula: wherein: n is an integer greater than 0, n represents a number of repeating units in the poly(siloxane-diphenylbutadiyne), Ar is an aromatic group, each R is independently selected from the group consisting of an alkyl, aryl, alkylaryl, haloalkyl, haloaryl, and combinations thereof; and wherein m is 3.