Hyperbranched polyurethane as novel solid–solid phase change material for thermal energy storage

A series of novel hyperbranched polyurethane copolymer (HB-PUPCM) using hyperbranched polyester as chain extender was prepared via a two-step process. The phase transition behaviors and morphology of the HB-PUPCM films were investigated using differential scanning calorimetry (DSC), dynamic mechanic...

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Bibliographic Details
Published in:European polymer journal 2006-11, Vol.42 (11), p.2931-2939
Main Authors: Cao, Qi, Liu, Pengsheng
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Heat storage
Hyperbranched polyester
Hyperbranched polyurethane
Micro-phase separation
Organic polymers
Physicochemistry of polymers
Polyethylene glycol
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Solid–solid phase change material
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Summary:A series of novel hyperbranched polyurethane copolymer (HB-PUPCM) using hyperbranched polyester as chain extender was prepared via a two-step process. The phase transition behaviors and morphology of the HB-PUPCM films were investigated using differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMA), thermo-gravimetric analysis (TGA), wide-angle X-ray diffraction (WAXD), polarizing optical microscopy (POM) and tapping-mode atomic force microscopy (AFM). HB-PUPCM was proven to a good polymeric solid–solid phase change heat storage material.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2006.07.020