COMPLEXATION AND BLENDING OF SOME WATER-SOLUBLE POLYMERS - SOLID-STATE NUCLEAR-MAGNETIC-RESONANCE RELAXATION STUDIES

被引：23

作者：

MAUNU, SL

KINNUNEN, J

SOLJAMO, K

SUNDHOLM, F

机构：

[1] Department of Polymer Chemistry, University of Helsinki, Meritullinkatu 1 A

来源：

POLYMER | 1993年 / 34卷 / 06期

关键词：

POLYMER COMPLEXES; POLYMER BLENDS; INTERACTION; NUCLEAR MAGNETIC RESONANCE; CROSS-POLARIZATION; MAGIC-ANGLE SPINNING; RELAXATION;

D O I：

10.1016/0032-3861(93)90764-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Water-soluble polymers such as poly(acrylic acid) (PAA), poly(methacrylic acid) (PMAA), poly(ethylene oxide) (PEO) and poly(vinyl pyrrolidone) (PVP) form interpolymer complexes with secondary bonds. These solid amorphous complexes, blends and mechanical mixtures of component polymers have been studied and the results have been compared. The structures have been analysed using differential scanning calorimetry and C-13 cross-polarization/magic-angle spinning nuclear magnetic resonance, and the molecular mobility has been studied using H-1 relaxation measurements. The interaction between component polymers affects the molecular motion. T1rhoH and T1H show the molecular-level mixing in complexes and partial mixing in blends. The glass transition of the PMAA-PVP complexes indicates the dominant role of PMAA in the complex. This conclusion is supported by T1H and T1rhoH measurements.

引用

页码：1141 / 1145

页数：5

共 16 条

[1] STUDY OF TERNARY COMPONENT POLYMER COMPLEXES OF POLY(METHACRYLIC ACID) AND POLY(ACRYLIC ACID) WITH COMPLEMENTARY POLYMERS [J].