超支化聚芳醚酮一种新的反应模式的确定[EB/OL]
北京:中国科技论文在线
AB’2 和AB’2以及一些其它形式的新单体进一步反应可得到超支化聚芳醚酮,其反应机制通过质谱(MS)得到证实
) 摘要: A2 + BB’2是制备超支化聚芳醚酮一种快速和有效的方法
TF)在K2CO3和Na2CO3做催化剂的条件下通过热缩聚反应可制备氟封端的超支化聚芳醚酮
二聚体可以被看作一个新的AB’2单体
张淑玲
张淑玲
) Abstract: A fast and highly efficient approach to hyperbranched poly (aryl ether ketone)s (HPAEKs) via the polycondensation of A2 and BB’2 monomers has been described
Commercially available hydroquinone (A2 monomer, HQ) and effortlessly synthesized 2,4’,6-trifluoro-benzophenone (BB’2 monomer, TF) were thermally polycondensed to prepared fluoro terminated hyperbranched poly(aryl ether ketone) with K2CO3 and Na2CO3 as the catalysts
During the reaction, p-carbonyl group fluorine of TF reacts rapidly with phenolic group of HQ, forming dominant dimers and some other species
The dimer can be considered as a new AB’2 monomer
Further reactions among molecules AB’2 and AB’2 with some other species result in the formation of hyperbranched poly (aryl ether ketone), as proven by mass spectra (MS)
Keywords: hyperbranched;BB’2 monomer;mode of reaction 下载PDF阅读器 PDF全文下载: 初稿 ( 153 ) 作者简介: 主要从事于聚合物的合成和改性 通信联系人: 【收录情况】 中国科技论文在线: 李秀杰
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