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Study of thermal relaxation of Poly (HDDA-co-MMA) by temperature modulated DSC and dielectric spectroscopy

Goswami, Ankur and Umarji, AM and Madras, Giridhar (2013) Study of thermal relaxation of Poly (HDDA-co-MMA) by temperature modulated DSC and dielectric spectroscopy. In: Polymer-Plastics Technology and Engineering, 52 (5). pp. 485-494.

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Official URL: http://dx.doi.org/10.1080/03602559.2012.759588

Abstract

The thermal transitions in the copolymer of 1,6-hexanediol diacrylate (HDDA) and methyl methacrylate (MMA) was investigated to understand its use in microstereolithography. The glass transition temperature and the effect of interaction on this transition process was investigated by means of temperature modulated differential scanning calorimetry (TMDSC). The heat capacities were determined and PHDDA rich phases showed lower heat capacity than PMMA rich phases. The frequency dependence of glass transitions were studied by varying the modulation period of TMDSC and confirmed by dielectric relaxation spectroscopy. Vogel Fulcher Tammann Hesse (VFTH) parameters of homo and copolymers have also been reported.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Ltd.
Keywords: Copolymers; Dielectric Properties; Glass Transition; Modulated Differential Scanning Calorimetry; Specific Heat
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Mechanical Sciences > Chemical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 28 May 2013 05:37
Last Modified: 28 May 2013 05:37
URI: http://eprints.iisc.ac.in/id/eprint/46573

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