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高分子学报 2009
SYNTHESIS AND THERMAL STABILITY OF PHOSPHAPHENANTHRENE-CONTAINING POLYACETYLENES
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Abstract:
New thermal stable mono-substituted polyacetylenes (PAT5 and PAT10) containing phosphaphenanthrene as side groups and end-chains of different lengths were studied.4-Ethynylbenzoyl and 4-alkoxylbenzoyl were first introduced into the 2-(6-oxide-6H-dibenz<1,2>oxaphos-phorin-6-yl)-dihydroxyphenylene (ODOPB) through a two-step esterification,respectively,which synthesized the phosphaphenanthrene-containing acetylenic monomers.The polymerization of novel monomers was carried out by using Rh(nbd)Cl]2-NEt3 as...
