Poly(ethylene glycol) (PEG)-modified epoxy phase-change polymer with dual properties of thermal storage and vibration damping

A novel cross-linked self-sustaining film was prepared by reaction of carboxyl-capped poly(ethylene glycol) (PEG) with epoxy resin, followed by incorporation of the prepared material (named modified epoxy, ME) into an epoxy matrix. Self-sustaining films were obtained with up to 60 wt% ME in the epox...

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Published in:Sustainable energy & fuels 2018-03, Vol.2 (3), p.688-697
Main Authors: Sundararajan, Swati, Kumar, Amit, Chakraborty, Bikash C., Samui, Asit B., Kulkarni, Prashant S.
Format: Article
Language:English
Subjects:
Calorimetry
Crosslinking
Degree of crystallinity
Differential scanning calorimetry
Dynamic mechanical analysis
Enthalpy
Epoxy resins
Fourier transforms
Infrared spectroscopy
Microscopy
NMR
Nuclear magnetic resonance
Optical microscopy
Phase separation
Phase transitions
Polyethylene glycol
Thermal storage
Vibration
Vibration damping
X-ray diffraction
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cited_by cdi_FETCH-LOGICAL-c307t-c07afc9570a5c2973cd031894fdd7ede69fd523a9504acefbf18744bd2b3721d3
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container_issue 3
container_start_page 688
container_title Sustainable energy & fuels
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creator Sundararajan, Swati
Kumar, Amit
Chakraborty, Bikash C.
Samui, Asit B.
Kulkarni, Prashant S.
description A novel cross-linked self-sustaining film was prepared by reaction of carboxyl-capped poly(ethylene glycol) (PEG) with epoxy resin, followed by incorporation of the prepared material (named modified epoxy, ME) into an epoxy matrix. Self-sustaining films were obtained with up to 60 wt% ME in the epoxy matrix. Fourier-transform infrared spectroscopy (FTIR) and 13 C nuclear magnetic resonance (NMR) were used for chemical characterization of the samples. Differential scanning calorimetry (DSC) study exhibited maximum enthalpy for PCM film reaching up to 41 J g −1 . The X-ray diffraction (XRD) and polarized optical microscopy (POM) indicated lesser degree of crystallinity of PEG segments due to constriction by crosslinked epoxy resin. Dynamic mechanical analysis (DMA) results indicate that the blend of epoxy and ME is compatible up to 30 wt% ME and there is distinct phase separation beyond this composition.
doi_str_mv 10.1039/C7SE00552K
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source Royal Society of Chemistry Journals
subjects Calorimetry
Crosslinking
Degree of crystallinity
Differential scanning calorimetry
Dynamic mechanical analysis
Enthalpy
Epoxy resins
Fourier transforms
Infrared spectroscopy
Microscopy
NMR
Nuclear magnetic resonance
Optical microscopy
Phase separation
Phase transitions
Polyethylene glycol
Thermal storage
Vibration
Vibration damping
X-ray diffraction
title Poly(ethylene glycol) (PEG)-modified epoxy phase-change polymer with dual properties of thermal storage and vibration damping
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