Synthesis of polysaccharide-containing block copolymer as novel surfactant = 새로운 계면활성제로서 다당류를 포함한 블록 공중합체 합성

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In this thesis, the block copolymer containing polysaccharides and synthetic polymer was synthesized. In order to introduce the polysaccharide into block copolymer structure, two methods were mainly used, which are polymerization of synthetic polymer with using polysaccharide as macroinitiator, or end-to-end coupling reaction between end of polysaccharide and end of synthetic polymer. Both of methods fundamentally need the end-functionalization of polysaccharide. The reducing end of dextran was functionalized to alkyne group and amine group, so that the optimum condition for end-functionalization could be found. Between the two synthetic routes of polysaccharide-containing block copolymer, the coupling reaction was selected, and especially click chemistry was used for synthesis of block copolymer. Before the click reaction between dextran and polystyrene was conducted, for dissolving the two materials in co-solvent, the protection of hydroxyl groups of dextran was performed by silylation. The structure of synthesized dextran-block-polystyrene copolymer was analyzed by GPC and $^1$H NMR.
Advisors
Li, Shengresearcher리섕researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2018.2,[iii, 46 p. :]

Keywords

Polysaccharide▼aBlock copolymer▼aEnd-functionalization▼aClick reaction▼aSilylation; 다당류▼a블록 공중합체▼a말단 기능화▼a클릭 반응▼a실릴화

URI
http://hdl.handle.net/10203/266322
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=733884&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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