Journal
POLYMER JOURNAL
Volume 44, Issue 12, Pages 1170-1178Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/pj.2012.96
Keywords
biaxially stretched film; glass transition temperature; nano alloy; nanostructure control technology; polyester; polyimide
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Funding
- Society of Polymer Science, Japan
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The novel concept and significance of a nano-alloyed polymer, which includes nano-dispersed domains, is proposed, and a biaxially stretched nano-alloyed film is developed. The developed film has a higher glass transition temperature and improved dimensional stability compared with regular poly(ethylene terephthalate) (PET) films. Nano-sized polyimide domains are dispersed with our original melting extrusion process, which produces highly concentrated polyimide master batches at much lower temperatures than the regular processing temperature of the polyimide. The biaxially stretched film has been industrialized for use as a substrate for data storage tapes and can additionally be applied to materials in the fields of electronic devices, automobile, environmental and energy devices. Polymer Journal (2012) 44, 1170-1178; doi:10.1038/pj.2012.96; published online 13 June 2012
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