Biodegradability of poly(tetramethylene succinate-co-tetramethylene adipate): I. Enzymatic hydrolysis

被引：28

作者：

Ando, Y

Yoshikawa, K

Yoshikawa, T

Nishioka, M

Ishioka, R

Yakabe, Y

机构：

[1] Showa Denko KK, Cent Res Lab, Midori Ku, Chiba 267, Japan

[2] Showa Denko KK, Petrochem Adm & Planning Dept, Minato Ku, Tokyo 105, Japan

[3] Chem Assessment Ctr, Dept Res, Kurume, Fukuoka 830, Japan

来源：

POLYMER DEGRADATION AND STABILITY | 1998年 / 61卷 / 01期

关键词：

D O I：

10.1016/S0141-3910(97)00140-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The hydrolysis of poly(tetramethylene succinate-co-tetramethylene adipate) (PBSA) by three sorts of bacterial lipases has been investigated. Changes in the concentration of water-soluble hydrolysates by lipases were measured by high performance liquid chromatography/mass spectrometry (HPLC/MS) over 96 h at pH 7.0 with a temperature of 35 degrees C. The amount and weight-average molecular weight (M-w) of the residual PBSA polymer were monitored by size exclusion chromatography (SEC) measurements. Within 96 h, PBSA powders had been hydrolyzed completely by these lipases. The value of M-w remained unchanged during the experimental period, suggesting that the PBSA powder was readily hydrolyzed from its bulk surface to give water-soluble oligomers. Most hydrolysates were the oligomers of one or two ester-linkages (ELs). (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：129 / 137

页数：9

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