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Vol. 25 No. 5 (2013): Vol 25 Issue 5

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Synthesis of Vinylphenyl Oligomeric Silsesquioxane Based on MQ Silicone Resin

https://doi.org/10.14233/ajchem.2013.13448
Ru Li
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P.R. China ; Graduate University of Chinese Academy of Sciences, Beijing 100049, P.R. China ; Changzhou Key Laboratory of Novel Lighting Source Materials and Technology, Changzhou Institute of Chemistry, Changzhou 213164, P.R. China
Baotan Zhang
Changzhou Key Laboratory of Novel Lighting Source Materials and Technology, Changzhou Institute of Chemistry, Changzhou 213164, P.R. China
Yongling Sun
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P.R. China
Bailing Liu
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P.R. China ; Changzhou Key Laboratory of Novel Lighting Source Materials and Technology, Changzhou Institute of Chemistry, Changzhou 213164, P.R. China
Gongying Wang
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P.R. China ; Changzhou Key Laboratory of Novel Lighting Source Materials and Technology, Changzhou Institute of Chemistry, Changzhou 213164, P.R. China

Corresponding Author(s) : Bailing Liu

blliuchem@hotmail.com

Asian Journal of Chemistry, Vol. 25 No. 5 (2013): Vol 25 Issue 5

Abstract

A novel vinylphenyl oligomeric silsesquioxane (VPOSS) based on MQ silicone resins were synthesised by cohydrolysis and polycondensation of phenyltriethyloxysilane, tetraethyloxysilane, 1,4-divinyltetramethyldisiloxane and hexamethyldisiloxane. The structure, morphology and properties of the developed copolymers were investigated by FTIR, DSC, XRD, 1H and 29Si NMR, GPC, TGA and SEM. The heat of fusion (DHf) measured for crystal melting was 21.27 J/g for VPOSS V. The results indicated that the cage and/or ladder structure and the decreasing content of M unit (mol %) in copolymers enhanced the thermal properties of the VPOSSs. The scanning electron microscopy images showed curved surface and lamellar fracture of VPOSS, which can be specialties of potential materials for connectivity and supporter of catalyst. Also, the most important applications are that multifunctional VPOSSs can be used as potential moieties for temperature resistance pressure sensitive adhensive and high performance liquid silicone rubber as light emitting diode encapsulation materials.

Keywords

Silsesquioxane MQ resin Polysiloxane Multifunctional
Li, R., Zhang, B., Sun, Y., Liu, B., & Wang, G. (2012). Synthesis of Vinylphenyl Oligomeric Silsesquioxane Based on MQ Silicone Resin. Asian Journal of Chemistry, 25(5), 2541–2546. https://doi.org/10.14233/ajchem.2013.13448
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