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Journal of Polymer Research

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01-10-2013 | Original Paper

Relaxation behavior of poly(trimethylene 2,6-naphthalate) in nanoclay confinement

Authors: Ahmad Nawaz Khan, Po-Da Hong, Wei-Tsung Chaung

Published in: Journal of Polymer Research | Issue 10/2013

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Abstract

The relaxation behavior of poly(trimethylene 2,6-naphthalate)/nanoclay composites is investigated using differential scanning calorimetry (DSC) and dynamic mechanical analyzer (DMA). The incorporation of two different types of nanoclays in the PTN matrix intercalated the PTN chains in the narrow space of clay intergalleries and constrained the polymer chains in the vicinity of nanoclay layers. Despite the presence of constrained region, the glass transition temperature of the PTN/nanoclay composite is decreased as compared to neat PTN. Moreover, the activation energy of the PTN is reduced and the relaxation rate of PTN becomes faster in the presence of nanoclays. The enhanced relaxation dynamics of PTN chains at T_g depends on the evolution of local free volume owing to the confining effect of chain intercalation.

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Title: Relaxation behavior of poly(trimethylene 2,6-naphthalate) in nanoclay confinement
Authors: Ahmad Nawaz Khan
Po-Da Hong
Wei-Tsung Chaung
Publication date: 01-10-2013
Publisher: Springer Netherlands
Published in: Journal of Polymer Research / Issue 10/2013
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-013-0280-8

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