| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hyper branched polycarbonate having a novel molecular structure and provide its manufacturing method. <P>SOLUTION: The hyper branched polycarbonate is composed of a repeating unit represented by general formula (1). Its manufacturing method consists of obtaining the hyper branched polycarbonate via the process of reacting bisphenol A bischloroformate and 1,1,1-tris(4-hydroxyphenyl)ethane in the presence of a base and tetrahydrofuran. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
