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|Title:||Synthesis and characterization of a soluble ladderlike polysilsesquioxane containing reactive ester groups|
Stepwise coupling polymerization
|Source:||Liu, Y.,Liu, C.-Q.,Shen, Z.-R.,Xie, P.,Zhang, R.-B.,He, C.-B.,Chung, T.-S. (2001-03). Synthesis and characterization of a soluble ladderlike polysilsesquioxane containing reactive ester groups. Chinese Journal of Polymer Science (English Edition) 19 (2) : 209-216. ScholarBank@NUS Repository.|
|Abstract:||A novel soluble ladderlike polysilsesquioxane containing reactive ester groups (Ester-T) was synthesized for the first time by stepwise coupling polymerization including preammonolysis, controlled hydrolysis and polycondensation. The monomer, 3-trichlorosilylpropoxy 4-acetoxybenzoate (M), was synthesized by hydrosilylation of allyloxy 4-acetoxybenzoate with trichlorosilane in the presence of dicyclopentadienylplatinum (II) chloride (Cp2PtCl2) catalyst. Combination of FTIR, 1H-NMR, 13C-NMR, 29Si-NMR, XRD, DSC, TGA and VPO methods was used to demonstrate that the polymer obtained has an ordered ladderlike structure. The synthesized Ester-T may have promising applications as a precursor of advanced functional polymers.|
|Source Title:||Chinese Journal of Polymer Science (English Edition)|
|Appears in Collections:||Staff Publications|
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