Journal
POLYMERS
Volume 10, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/polym10020172
Keywords
comb-like polymer; phase change materials; microcapsule; permeability resistance; thermal stability
Categories
Funding
- Tianjin Research Program of Application Foundation and Advanced Technology [16JCYBJC17100]
- National Natural Science Foundation of China [51573135, 51203113]
- China Postdoctoral Science Foundation [2017M611167]
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To enhance the thermal stability and permeability resistance, a comb-like polymer with crystallizable side chains was fabricated as solid-solid phase change materials (PCMs) inside the cores of microcapsules and nanocapsules prepared via in-situ polymerization. In this study, the effects on the surface morphology and microstructure of micro/nanocapsules caused by microencapsulating different types of core materials (i.e., n-hexadecane, ethyl hexadecanoate, hexadecyl acrylate and poly(hexadecyl acrylate)) were systematically studied via field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). The confined crystallization behavior of comb-like polymer PCMs cores was investigated via differential scanning calorimeter (DSC). Comparing with low molecular organic PCMs cores, the thermal stability of PCMs microencapsulated comb-like polymer enhanced significantly, and the permeability resistance improved obviously as well. Based on these resultant analysis, the microencapsulated comb-like polymeric PCMs with excellent thermal stability and permeability resistance showed promising foreground in the field of organic solution spun, melt processing and organic coating.
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