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Tytuł pozycji:

Preparation, characterization and thermal properties of tetramethylbisphenol F epoxy resin and mixed systems.

Tytuł :
Preparation, characterization and thermal properties of tetramethylbisphenol F epoxy resin and mixed systems.
Autorzy :
Liu, Zhongguo
Zhang, Gang
Sun, Hongcheng
Jiang, Hao
Zhao, Chengji
Xu, Dan
Li, Hongtao
Sun, Xingwu
Na, Hui
Pokaż więcej
Temat :
EPOXY resins
BROMIDES
GLASS transition temperature
SEMICONDUCTORS
EPICHLOROHYDRIN
Źródło :
Polymer International; Apr2012, Vol. 61 Issue 4, p565-570, 6p
Czasopismo naukowe
Tetramethylbisphenol F epoxy resin (TMBPFE) was successfully synthesized based on tetramethylbisphenol F (TMBPF) and epichlorohydrin with tetrabutylammonium bromide as the catalyst. The structure of TMBPFE was characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance and elemental analysis. Then, a mixed system composed of TMBPFE and 4,4′-diglycidyl (3,3′,5,5′-tetramethylbiphenyl) epoxy (TMBP) was prepared by a melting method, i.e. without any solvent. Both the TMBPFE and the mixed system were cured using 4,4′-diaminodiphenyl methane (DDM) as the curing agent. The thermal properties of TMBPFE and the mixed system were studied using differential scanning calorimetry, dynamic mechanical analysis and thermogravimetric analysis (TGA). The results showed that the TMBP mixed in the TMBPFE matrix had little effect on the thermal properties of TMBPFE. However, the glass transition temperature improved markedly with increasing content of TMBP. Moreover, the TGA results showed that the degradation characteristics of TMBPFE resins did not seriously decrease when TMBP was incorporated into the TMBPFE matrix, although there are large steric hindrance biphenyl groups in TMBP. Both TMBPFE and the TMBPFE/TMBP system have potential applications in electrical and electronic fields. Copyright © 2011 Society of Chemical Industry [ABSTRACT FROM AUTHOR]
Copyright of Polymer International is the property of John Wiley & Sons, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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