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US4708991A Polymers of ethynylthiophenoxy derivatives of diphenylhexafluoropropane 失效
二苯基六氟丙烷的乙炔基硫代苯氧基衍生物的聚合物

Polymers of ethynylthiophenoxy derivatives of diphenylhexafluoropropane
摘要:
Ethynylphenyl derivatives of diphenylhexafluoropropane having the formula: ##STR1## where X is oxygen or sulfur and each of R, R.sub.1, or R.sub.2 is hydrogen or ethynyl. The compounds are useful in forming polymer structures, either homopolymers or copolymers.
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