引用本文:
Tian Hua Huang, Zhao Ju Yu, Xu Min He, Mu He Huang, Li Fu Chen, Hai Ping Xia, Li Tong Zhang. One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups[J]. Chinese Chemical Letters,
2007, 18(6): 754-757.
doi:
10.1016/j.cclet.2007.04.006
Citation: Tian Hua Huang, Zhao Ju Yu, Xu Min He, Mu He Huang, Li Fu Chen, Hai Ping Xia, Li Tong Zhang. One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups[J]. Chinese Chemical Letters, 2007, 18(6): 754-757. doi: 10.1016/j.cclet.2007.04.006
Citation: Tian Hua Huang, Zhao Ju Yu, Xu Min He, Mu He Huang, Li Fu Chen, Hai Ping Xia, Li Tong Zhang. One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups[J]. Chinese Chemical Letters, 2007, 18(6): 754-757. doi: 10.1016/j.cclet.2007.04.006
One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups
摘要:
A highly branched polycarbosilane bearing allyl groups has been prepared by a one-pot synthesis with chloromethyltrichlorosilane, chloromethylmethyldichlorosilane and allyl chloride as the starting materials.The resultant polymer, with the approximate formula[SiH1.2(CH3)0.71(CH2CH=CH2)0.09CH2]n, has been characterized by 1H, 13C, and 29Si NMR, GPC, TG and elemental analysis.It could be cross-linked thermally at 170℃ in the absence of oxygen.Pyrolysis of the polymer gave a ceramic with a yield of about 70%.
English
One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups
Abstract:
A highly branched polycarbosilane bearing allyl groups has been prepared by a one-pot synthesis with chloromethyltrichlorosilane, chloromethylmethyldichlorosilane and allyl chloride as the starting materials.The resultant polymer, with the approximate formula[SiH1.2(CH3)0.71(CH2CH=CH2)0.09CH2]n, has been characterized by 1H, 13C, and 29Si NMR, GPC, TG and elemental analysis.It could be cross-linked thermally at 170℃ in the absence of oxygen.Pyrolysis of the polymer gave a ceramic with a yield of about 70%.
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Key words:
- Polycarbosilane
- / One-pot synthesis
- / Silicon carbide precursor
- / Ceramic precursor
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