Synthesis and Characterization of Functional Polycarbonates

Abstract

Abstract: New polycarbonates were synthesized by ring-opening polymerization from the protected cyclic carbonate 9-phenyl-2,4,8,10-tetraoxaspiro-[5,5]undecan-3-one in bulk at 190 'Cunder the catalysis of various catalysts, such as aluminum isobutoxide [Al(O'Bu)₃], aluminum isopropoxide [Al(O'Pr)₃] or stannous octanoate [Sn(Oct)₂]. The effects of different catalysts, reaction time, and monomer-to-catalyst molar ratio on the molecular weight and yield were investigated. The polycarbonates obtained were characterized by FTIR, ¹HNMR, GPC and DSC. The protecting benzal group was removed by hydrolysis with 80% acetic acid to give a functional polycarbonate containing 45% hydroxyl group.

Key words: Functional polycarbonate, Ring-opening polymerization, Hydrolysis, Hydrophilicity

CLC Number:

O631

TrendMD:

LIU Zhi-Lan, ZHANG Jian-Min, ZHUO Ren-Xi . Synthesis and Characterization of Functional Polycarbonates[J]. Chem. J. Chinese Universities, 2003, 24(9): 1730.

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Synthesis and Characterization of Functional Polycarbonates

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