SMALL-ANGLE SCATTERING FROM POLYELECTROLYTE SOLUTIONS - DIMENSIONS OF POLY(METHACRYLIC ACID) CHAINS IN SALT-FREE SOLUTIONS

被引：35

作者：

PLESTIL, J ^{[1
]}

OSTANEVICH, YM ^{[1
]}

BEZZABOTONOV, VY ^{[1
]}

HLAVATA, D ^{[1
]}

LABSKY, J ^{[1
]}

机构：

[1] CZECHOSLOVAK ACAD SCI,INST MACROMOLEC CHEM,CS-16206 PRAGUE 6,CZECHOSLOVAKIA

来源：

POLYMER | 1986年 / 27卷 / 06期

关键词：

NEUTRONS - Scattering - POLYMERS - Molecular Structure;

D O I：

10.1016/0032-3861(86)90291-0

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 single-particle scattering function and the radius of gyration of the poly(methacrylic acid) (PMA) molecule have been obtained as a function of the degree of neutralization. A comparison of perturbed and unperturbed dimensions indicates that the expansion of PMA can be ascribed to the presence of charges alone. At a low degree of neutralization ( beta APP 1STH 0. 2), only long-range interactions contribute to the expansion. At higher beta values, both long-range and short-range interactions are operative.

引用

页码：839 / 842

页数：4

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