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A Study of the Glass Transition in Polymeric Mesophases via Calorimetric and Non-Linear ESR Techniques

 

作者: Landreozzi,   M. Giordano,   D. Leporini,   M. Martinelli,   M. Paci,   A.S. Angeloni,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1992）
卷期: Volume 212, issue 1  

页码: 107-114

 

ISSN:1058-725X

 

年代: 1992

 

DOI:10.1080/10587259208037251

 

出版商: Taylor & Francis Group

 

关键词: glass transition;non-linear ESR;thermal analysis

 

数据来源: Taylor

 

摘要:

In undercooled polymeric mesophases, being annealed at a temperature higher thanTg, nucleation and crystal growth processes take place. We investigate the ageing of comb-like polyacrilates both by calorimetry and non-linear ESR After annealing, the local transport properties of the polymers with quenched disorder exhibit relevant changes which are interpreted in terms of a decreased cooperativity of the amorphous part.

 

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