Citation: Qing-hua Duan, Tao-yi Zhang, Kui-lin Deng, Ping Xie, Rong-ben Zhang. SYNTHESIS AND CHARACTERIZATION OF A NOVEL REACTIVE OLIGOMERIC LADDERLIKE COPOLYMETHYL-AMINOPROPYL SILSESQUIOXANE[J]. Chinese Journal of Polymer Science, ;2005, 23(4): 355-361. shu

SYNTHESIS AND CHARACTERIZATION OF A NOVEL REACTIVE OLIGOMERIC LADDERLIKE COPOLYMETHYL-AMINOPROPYL SILSESQUIOXANE

Corresponding author: Rong-ben Zhang,
Received Date: 29 April 2004
Revised Date: 26 May 2004

A novel ordered reactive oligomeric ladderlike copolymethyl-aminopropylsilsesquioxane (Me-AP-T), was successfully synthesized by an efficient hydrosilylation graft reaction of 1,1,1-trimethyl-N-2-propenyl-silanamine with a reactive oligomeric ladderlike copolymethyl-hydrosilsesquioxane (Me-H-T), which was prepared by “supramolecular chemistry-dictated stepwise coupling polymerization” process. FT-IR, 1H- and 29Si-NMR spectra show that hydrosilylation reaction proceeds completely. Moreover, 1H-NMR spectra also indicate that both the molar ratios of ≡SiMe group to Si―H and ≡SiMe group to ≡SiPrNH2 are approximately 1:1 respectively based on the ratio of integrated resonance areas of the different groups. XRD analysis and 29Si-NMR spectra are used for investigating the ladderlike structure of the polymers. A high Tg (128.38℃) of Me-AP-T shown in DSC measurement implies that the ordered reactive Me-AP-T macromolecules have much stiff chains.
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