Convenient synthesis of high molecular weight poly(succinimide) by acid-catalysed polycondensation of L-aspartic acid

被引：157

作者：

Tomida, M

Nakato, T

Matsunami, S

Kakuchi, T

机构：

[1] HOKKAIDO UNIV,GRAD SCH ENVIRONM EARTH SCI,SAPPORO,HOKKAIDO 060,JAPAN

[2] MITSUBISHI CHEM CORP,TSUKUBA RES CTR,CHUO KU,INASHIKI,IBARAKI 30003,JAPAN

来源：

POLYMER | 1997年 / 38卷 / 18期

关键词：

L-aspartic acid; poly(succinimide); poly(aspartic acid);

D O I：

10.1016/S0032-3861(96)01079-8

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(succinimide) (PSI) was synthesized by acid-catalysed polycondensation of L-aspartic acid. Polycondensation proceeded at a reaction temperarture of above ca. 160 degrees C, and a PSI with the highest weight-average molecular weigh, 64 300, was obtained using a mixed solvent of mesitylene and sulfolane (w/w, 7/3) and phosphoric acid. Poly(aspartic acid), which was produced by alkali-hydrolysis of PSI, exhibited higher biodegradability than that originated from thermally polycondensed aspartic acid. After 28 days, biochemical oxygen demand/theoretical oxygen demand (BOD/TOD) and dissolved organic carbon for catalytic PASP were 82 and 89%, respectively, and 26 and 46% for thermal PASP. (C) 1997 Elsevier Science Ltd.

引用

页码：4733 / 4736

页数：4

共 9 条

[1] POLYCONDENSATION OF THERMAL PRECURSORS OF ASPARTIC ACID [J].