Citation: . SYNTHESIS AND CHARACTERIZATION OF A SOLUBLE LADDERLIKE POLYSILSESQUIOXANE CONTAINING REACTIVE ESTER GROUPS*[J]. Chinese Journal of Polymer Science, ;2001, 19(2): 209-216. shu

SYNTHESIS AND CHARACTERIZATION OF A SOLUBLE LADDERLIKE POLYSILSESQUIOXANE CONTAINING REACTIVE ESTER GROUPS*

Received Date: 20 March 2000

A novel soluble ladderlike polysilsesquioxane containing reactive ester groups (Ester-T) was synthesized for thefirst time by stepwise coupling polymerization including preammonolysis, controlled hydrolysis and polycondensation. Themonomer, 3-trichlorosilylpropoxy 4-acetoxybenzoate (M), was synthesized by hydrosilylation of allyloxy 4-acetoxybenzoatewith 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 functioanl polymers.
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