Accelerated biodegradation of poly(vinyl alcohol) by a glycosidation of the hydroxyl groups

被引：45
|
作者：
Takasu, A [1 ]
Itou, H [1 ]
Takada, M [1 ]
Inai, Y [1 ]
Hirabayashi, T [1 ]
机构：
[1] Nagoya Inst Technol, Grad Sch Engn, Dept Environm Technol & Urban Planning, Showa Ku, Nagoya, Aichi 4668555, Japan
来源：
POLYMER | 2002年 / 43卷 / 01期
关键词：
poly(vinyl alcohol); glycosidation; accelerated biodegradation;
D O I：
10.1016/S0032-3861(01)00583-3
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Biodegradability of N-acetyl-D-glucosamine (GlcNAc)-substituted poly(vinyl alcohol) (PVA) (1) in a soil suspension (pH 6.5) was investigated at 25 degreesC for 40 days. Biochemical oxygen demand (BOD) of 1 with degree of substitution of 0.2-0.3 (DP = 430-480) was higher than that of PVA under the degradation condition. Size exclusion chromatography (SEC), H-1 NMR, and FT-IR measurements of the recovered sample indicated that biodegradation of PVA main chain was accelerated by partial glycosidation of hydroxyl groups in PVA. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：227 / 231
页数：5
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