Chin. Phys. Lett.  2006, Vol. 23 Issue (4): 998-1001    DOI:
Original Articles |
Anisotropy in Thermo-Optic Coefficient of Different Polymer Systems by Attenuated Total Reflection Configuration
LI Xiang;CAO Zhuang-Qi;SHEN Qi-Shun;MENG Qing-Hua;HUANG De-Ying;GUO Kun-Peng;QIU Ling;SHEN Yu-Quan
1Department of Physics, Shanghai Jiaotong University, Shanghai 200240 2School of Chemistry and Engineering, Shanghai Jiaotong University, Shanghai 200240 3Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101
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LI Xiang, CAO Zhuang-Qi, SHEN Qi-Shun et al  2006 Chin. Phys. Lett. 23 998-1001
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Abstract Thermo-optic coefficient dn/dT as well as volume expansion coefficients β of different polymer systems are measured for both TE and TM polarizations in an attenuated total reflection (ATR) configuration. Experimental results indicate that cross-linked polymer systems exhibit the thermal expansion coefficients smaller than those of the original side-chain systems. Moreover, the anisotropies in thermo-optic coefficients of the polymer systems with small birefringence exhibit linear relationship with the anisotropies in volume expansion coefficients, but the polymer systems with larger birefringence exhibit more complicated relationship.
Keywords: 78.20.Nv 78.66.Qn     
Published: 01 April 2006
PACS:  78.20.Nv 78.66.Qn  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I4/0998
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LI Xiang
CAO Zhuang-Qi
SHEN Qi-Shun
MENG Qing-Hua
HUANG De-Ying
GUO Kun-Peng
QIU Ling
SHEN Yu-Quan
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