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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 43, Number 4
JKCSEZ 43(4)
August 20, 1999 

 
Title
Synthesis of Dendritic Carbosilanes by the Use of Hyperbranched Polymers

Hyperbranched Polymer을 이용한 나뭇가지꼴 카보실란 거대분자의 합성
Author
Chungkyun Kim, Sungkyung Kang, Eunmi Park

김정균, 강성경, 박은미
Keywords
Abstract
Hyperbranched polymer를 이용한 나뭇가지꼴 카보실란 거대분자를 합성하였다 Hyperbranched polymer의 영세대 화합물의 합성은 HSiMe3-n(CH2CH=CH2)n(n=2, AB2,3;AB3형)의 수소화규소첨가반응 방법을 이용하여 합성하였다 Hyperbranched polymer AB2와 AB3형 고분자 화합물은 수소화규소첨가반응과 알켄첨가반응에 의해 Gn+1형 나뭇가지꼴 거대분자로 성장하였다 Gn+2P세대 화합물은 HSiMeCl2와의 수소화규소첨가반응 방법에 의해 모든 가지가 동일형 화합물을 형성하지 못했다 Gn과 Gn+1형 고분자 화합물은 9-BBN과의 반응과 반응생성물의 산화반응에 의해서 polysilol을 형성하였다 반응의 정도는 NMR에 의해서 확인할 수 있었다

Dendritic carbosilanes based on hyperbranched polycarbosilanes as core molecule have been prepared The core molecules were obtained by the use of hydrosilation of HSiMe3-n(CH2CH=CH2)n(n=2,AB2 and 3; AB3 type) The hyperbranched core AB2 and AB3 type polymers were generated to higher molecular dendritic carbosilanes Gn+1 by the use of hydrosilation and alkenylation sequence. The Gn+2P generations were not obtained as unified molecules by the use of hydrosilation with HSiMeCl2. Gn and Gn+1 type polymers were produced to polysilol by the reaction of 9-BBN and alkali medium oxidation of hydroborated compounds. The degree for reaction has been controlled by the NMR spectroscopy.

Page
393 - 400
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