Chemical modification of pullulan by isocyanate compounds

被引：39

作者：

Shibata, M ^{[1
]}

Asahina, M ^{[1
]}

Teramoto, N ^{[1
]}

Yosomiya, R ^{[1
]}

机构：

[1] Chiba Inst Technol, Dept Ind Chem, Narashino, Chiba 2750016, Japan

来源：

POLYMER | 2001年 / 42卷 / 01期

关键词：

pullulan; isocyanate; chemical modification;

D O I：

10.1016/S0032-3861(00)00321-9

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 modified pullulan derivatives having N-phenylurethane and N-hexylurethane groups in the side-chain (PI-PL and HI-FL) have been synthesized by the reactions of pullulan with phenyl isocyanate (PIC) and hexyl isocyanate (HIC), respectively. The structure of the derivatives was characterized by gel permeation chromatography, IR and H-1 NMR spectroscopy. From the measurement of differential scanning calorimetry of PI-FL and HI-FL with various degrees of addition (DA) in the range of 0-3, it was revealed that both the derivatives showed a clear glass transition temperature (T-g), which decreased with the increasing DA of PIC and HIC. The pullulan derivatives were water-resistant and had good solubility in general organic solvents. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：59 / 64

页数：6

共 13 条

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[2]

[Anonymous], 1961, ANGEW CHEM-GER EDIT

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