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Licensed Unlicensed Requires Authentication Published by De Gruyter May 23, 2016

Investigation of glass transition kinetics in C60-doped carbazole-based photorefractive polyacrylates

Untersuchung der Glasübergangskinetik in C60-dotierten Carbazol-basierten photorefraktiven Polyacrylaten
Shufan Chen, Baili Chen, Chuanqun Huang, Xuan Luo, Yu Fang and Weidong Wu
From the journal Materials Testing

Abstract

This article describes the fabrication of C60-doped carbazole-based bi-functional photorefractive polyacrylates, the C60-doped concentrations are 0.0, 0.2, 0.5, 0.7 and 1.0 wt.-%, respectively. For these photorefractive polyacrylates, differential scanning calorimetric runs have been taken under nonisothermal conditions at different heating rates. The result indicates that the glass transition temperature Tg first increases and then decreases with increasing of C60 content. Tg of the same sample increases with increasing heating rate. The activation energy of glass transition (Eg) has been evaluated based on the Moynihan and Kissinger model. The results showed that both Eg values obtained from Kissinger's and Moynihan's relations are in good agreement.

Kurzfassung

In diesem Beitrag wird die Herstellung von C60-dotierten Carbazol-basierten bi-funktionalen photorefraktiven Polyacrylaten beschrieben, wobei die Konzentration der C60-Dotierung entsprechend 0,0, 0,2, 0,5, 0,7 bzw. 1,0 wt.-% betrug. Für diese photorefraktiven Polyacrylate wurden differentialkalorimetrische Durchläufe unter nicht-isothermen Bedingungen und bei verschiedenen Aufheizraten durchgeführt. Die Ergebnisse deuten darauf hin, dass die Glasübergangstemperatur Tg zunächst zunimmt und dann mit zunehmendem C60-Gehalt abnimmt. In gleicher Weise nimmt der Wert von Tg zu, wenn die Aufheizrate ansteigt. Die Aktivierungsenergie des Glasübergangs (Eg) wurde basierend auf dem Moynihan und Kissinger Modell evaluiert. Die Ergebnisse zeigen, dass beide Eg Werte, die mit Kissinger's und Moynihan's Relationen berechnet wurden, gut übereinstimmen.


*Correspondence Address, Prof. Dr. Weidong Wu, Research Center of Laser Fusion, China Academy of Engineering Physics, No. 64 Mianshan Road, Mianyang, Sichuan, 621900 China. E-mail:

Associate Prof. Dr. Shufan Chen, born in 1985, studied atthe Polymer Research Institute of Sichuan University, P. R. China, and completed her Doctor's Degree. In 2012, she started working on design and synthesis of novel organic optical materials in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. China.

Baili Chen, PhD candidate, was born in 1987. He received his Master's Degree from Southwest University of Science and Technology in Mianyang, P. R. China. At present, he is pursuing his doctoral degree in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. China. His research areas include synthesis and characterization of organic optical materials.

Associate Prof. Dr. Chuanqun Huang, was born in 1979, studied atthe University of Science and Technology of China in Hefei and completed her Doctor's Degree. In 2011, she started working on design and synthesis of novel environmental responsive polymers in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. China.

Associate Prof. Dr. Xuan Luo, born in 1975, received his Doctor's Degree from Southwest University of Science and Technology, Mianyang, P. R. China. In 2000, he started working in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. His major research areas include synthesis and characterization of low density inorganic foam materials.

Associate Prof. Yu Fang, born in 1980, received her Master's Degree from Sichuan University, Chengdu, P. R. China. She started working in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. China in 2004. Her research work is focused on the fabrication of ultra-low density organic foam materials.

Prof. Weidong Wu, born in 1967, studied at the Institute of Atomic and Molecular Physics of Sichuan University, Chengu, P. R. China, and completed his Doctor's Degree. He has been working in the Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, P. R. China, since 1994. His major research areas include condensed matter physics and plasma physics.


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Published Online: 2016-05-23
Published in Print: 2016-06-01

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