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Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication
  • Touch Screen Panel(TSP) new materials and process new materials and process
  • Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

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Temperature-induced phase separation of side-chain LCP/LMWLC blends

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Title
Temperature-induced phase separation of side-chain LCP/LMWLC blends
Author
Ahn, WonSoolHa, KiRyongPark, Lee Soon
Keywords
LIQUID-CRYSTALS;  BEHAVIOR;  POLYMERS;  7CB;  low molecular weight liquid crystal (LMWLC);  phase separation;  side-chain liquid crystal polymer (SCLCP);  temperature-induced
Issue Date
2006
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.458, no., pp.191 - 197
Abstract
A blend of side-chain liquid crystal polymer (SCLCP) and low molecular weight liquid crystal (LMWLC) was used to investigate a phase separation behavior induced by temperature. Phase separation at room temperature was observed only for the compositions higher than 60 wt% LMWLC because of good miscibility between two components. An interesting phenomenon was observed when the film transmittance for a phase-separated sample as a function of temperature was measured under cross-polarizer. That is, transmittance below T(NI) of LMWLC was observed lower than that below T(SI) of SCLCP, which was not expected initially. The fact was considered as a micro-phase separation induced by an interfacial effect between SCLCP and LMWLC phase
URI
https://scholarworks.unist.ac.kr/handle/201301/17237
DOI
10.1080/15421400600932579
ISSN
1542-1406
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