Synthesis and characterization of hyperbranched polymer particles = 하이퍼브랜치드 고분자 입자의 합성과 특성에 관한 연구

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This thesis deals with synthesis and characterization of hyperbranched polymer particles. We attempted the synthesis of various hyperbranched polymer particles via SNAr reaction, Michael addition reaction and in-verse suspension polymerization. Characterization and applications derived from the respective compositions and architectures were also investigated. Architectural variation of polymers was attempted to produce uni-molecular micelles and hydrogels. Firstly, unimolecular dendritic reverse micelle with carboxylic acid groups in the core and long chain alkyl groups as outer shell was prepared by polycondesation of 3,5-dihydroxy-benzoic acid (A2X monomer) and 1,3,5-tris(4-fluorobenzoyl)benzene (B3 monomer) followed by modification of dodecyl phenol. This amphiphilic hyperbranched poly(arylene ether) behaved not only as a unimolecular micelle but also as a nanocarrier for cationic guest molecules. Secondly, we synthesized hyperbranched polyamidoamines with functional nitrogen and amide groups by Michael addition reaction of various diamine monomers and acrylamide monomers. And also polymeriza-tion kinetic and thermal properties of the polymers were investigated. Finally, we investigated their absorption behaviors of heavy metal ions in aqueous solution. Finally, we synthesized the hyperbranched polyamidoamine (HPAMAM) particles from commercially available A2 and B4 type monomers by polycondensation without initiators or cross-linker agents via inverse suspension polymerization. Unlike other polymer particles which are synthesized via conventional suspension polymerization, the particles are synthesized via inverse suspension polymerization without initiators or cross-linker agents, so, the HPAMAM particles can be manufactured easily without additional cross-linkers. To the best of our knowledge, this is the first example of the production of the HPAMAM particles without additional agents. And also, the effects of reaction parameters on the water absorp...
Advisors
Kim, Sang-Youlresearcher김상율
Description
한국과학기술원 : 화학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
568647/325007  / 020088039
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 화학과, 2014.2, [ ix, 62 p. ]

Keywords

Hyperbranched polymer; 하이드로젤; 폴리(아미도아민); 폴리(아릴렌 에테르 케톤); 역상 현탁 중합; 마이클 부가 반응; Nucleophilic aromatic substitution reaction; Michael addition reaction; Inverse suspension polymerization; Poly(arylene ether ketone); Poly(amidoamine); Hydrogel; 하이퍼브랜치드 고분자; 친핵성 방향족 치환 반응

URI
http://hdl.handle.net/10203/196456
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568647&flag=dissertation
Appears in Collection
CH-Theses_Ph.D.(박사논문)
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