USE OF T1-RHO-H AS A PROBE FOR POLYMER BLEND PHASE-STRUCTURE

被引：7
|
作者：
NATANSOHN, A
机构：
[1] Department of Chemistry, Queen's University, Kingston, Ontario
来源：
POLYMER ENGINEERING AND SCIENCE | 1992年 / 32卷 / 22期
关键词：
D O I：
10.1002/pen.760322209
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
T1rhoH, the proton spin-lattice relaxation time in the rotating frame, can be used as a probe for polymer blend miscibility in the same way the glass transition temperature (T(g)) is used. T1rhoH has some advantages over T(g). It is indicative of the separate phases at a level of a few nanometers, below what T(g) can distinguish. Also, T1rhoH is the only parameter related to the local proton density in a sample. This paper shows a few examples of T1rhoH investigations, including thermally reversible blends, phase separated composites, and mixtures of polymers with small molecules.
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页码：1711 / 1715
页数：5
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