Synthesis of functional polycarbonates by lipase-catalyzed ring-opening polymerization

被引：19

作者：

Feng, J ^{[1
]}

Zhuo, RX ^{[1
]}

He, F ^{[1
]}

Wang, XL ^{[1
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

来源：

MACROMOLECULAR SYMPOSIA | 2003年 / 195卷

关键词：

enzymes; lipase; poly(5-benzyloxy-trimethylene carbonate); polycarbonates; ring-opening polymerization;

D O I：

10.1002/masy.200390128

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(5-benzyloxy-trimethylene carbonate) (PBTMC), a new functional polycarbonate was synthesized by enzymatic ring-opening polymerization in bulk at 150degreesC using Porcine pancreas lipase (PPL) or Candida rugosa lipase (CL) as catalyst. Influences of different polymerization conditions such as the source of enzyme, enzyme concentration and polymerization time on the molecular weight and yield were studied. The results showed that PPL exhibited higher activity than CL. Both higher molecular weight(Mn, 18953) and yield(98%) could be obtained by the use of PPL as catalyst. H-1 NMR spectrum showed no decarboxylation occurrence during the ring-opening polymerization.

引用

页码：237 / 240

页数：4

共 8 条

[1] NOVEL BIOERODIBLE POLY(HYDROXYALKYLENE CARBONATES)S - A VERSATILE CLASS OF POLYMERS FOR MEDICAL AND PHARMACEUTICAL APPLICATIONS [J].