ELASTIC-MODULUS OF THE CRYSTALLINE REGIONS OF CELLULOSE POLYMORPHS

被引：468

作者：

NISHINO, T ^{[1
]}

TAKANO, K ^{[1
]}

NAKAMAE, K ^{[1
]}

机构：

[1] KOBE UNIV,FAC ENGN,DEPT SCI & CHEM ENGN,KOBE 657,JAPAN

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1995年 / 33卷 / 11期

关键词：

ELASTIC MODULUS; CRYSTALLINE REGIONS; CELLULOSE; CRYSTAL STRUCTURE; MECHANICAL PROPERTY;

D O I：

10.1002/polb.1995.090331110

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 elastic modulus E(l) of the crystalline regions of cellulose polymorphs in the direction parallel to the chain axis was measured by x-ray diffraction. The E(l) values of cellulose I, II, IIII, IIIII, and IVI were 138, 88, 87, 58, 75 GPa, respectively. This indicates that the skeletons of these polymorphs are completely different from each other in the mechanical point of view. The crystal transition induces a skeletal contraction accompanied by a change in intramolecular hydrogen bonds, which is considered to result in a drastic change in the E(l) value of the cellulose polymorphs. (C) 1995 John Wiley & Sons, Inc.

引用

页码：1647 / 1651

页数：5

共 21 条

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