POLYBUTADIENE - KINETICS OF CROSS-LINK FORMATION OBSERVED FROM PSEUDOSOLID NMR OF PROTONS

被引：9

作者：

COHENADDAD, JP ^{[1
]}

SOYEZ, E ^{[1
]}

VIALLAT, A ^{[1
]}

QUESLEL, JP ^{[1
]}

机构：

[1] MFG MICHELIN, F-63040 CLERMONT FERRAND, FRANCE

来源：

MACROMOLECULES | 1992年 / 25卷 / 04期

关键词：

D O I：

10.1021/ma00030a009

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 pseudosolid behavior of the magnetization of protons attached to polybutadiene chains is analyzed to observe the kinetics of cross-link formation. Normalized curves of kinetics are shown to be nearly independent of the concentration of the cross-linking agent (sulfur). The final state of gelation is described by an NMR parameter which is proportional to the concentration of sulfur. The effect of partial average orientation of skeletal bonds is found to be enhanced throughout the whole polymer system whenever the concentration of sulfur is higher than 2 x 10(-3) g/g.

引用

页码：1259 / 1266

页数：8

共 9 条

[1]

ABRAGAM A, 1961, PRINCIPLES NUCLEAR M

[2]

[Anonymous], 1980, VISCOELASTIC PROPERT

[3] POLYETHYLENE, KINETICS OF CROSS-LINK FORMATION AS OBSERVED IN A SEMILOCAL SPACE-SCALE USING NMR [J].