Citation: Chao Zhang, Hong Yao Xu, Xian Zhao. Structure and properties of low-dielectric-constant poly(acetoxystyrene-co-octavinyl-polyhedral oligomeric silsesquioxane)hybrid nanocomposite[J]. Chinese Chemical Letters, ;2010, 21(4): 488-491. doi: 10.1016/j.cclet.2009.11.038 shu

Structure and properties of low-dielectric-constant poly(acetoxystyrene-co-octavinyl-polyhedral oligomeric silsesquioxane)hybrid nanocomposite

Chao Zhang ^a, ,
Hong Yao Xu ^a,b ,
Xian Zhao ^b

a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Material Science and Engineering, Donghua University, Shanghai 201620, China;
b State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China

Received Date: 7 September 2009

Fund Project: This research was financially supported by the National Natural Science Foundation of China (Nos. 90606011, 50472038 and 2097401), PhD Program Foundation of Ministry of Education of China (No. 20070255012), and Shanghai Leading Academic Discipline Project (No. B603), and Open Project of The State Key Laboratory of Crystal Materials (KF0809), the Program of Introducing Talents of Discipline to Universities (No. 111-2-04) and Doctoral Dissertation Innovation Project (No. BC200907).

Low-dielectric-constant poly(acetoxystyrenezhi-co-octavinyl-polyhedral oligomeric silsesquioxane)(PAS-POSS)organic-inorganic hybrid nanocomposite was successfully synthesized via one-step free radical polymerization and characterized by FTIR,high-resolution ¹H NMR,²⁹Si NMR,DSC,TGA,AFM,spectroscopic ellipsometry and dielectric constants measurements.The results show T_g and T_dec were elevated dramatically due to the incorporation of inorganic POSS cores.Spectroscopic ellipsometry and dielectric constants measurement display the incorporation of POSS into PAS homopolymer can apparently reduce the dielectric constant of materials due to the increase of relative porosity of the hybrid nanocomposites.
- Low-dielectric-constant,
- Hybrid nanocomposite,
- POSS
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