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논문 기본 정보

자료유형
학위논문
저자정보

강태현 (울산대학교, 울산대학교 대학원)

발행연도
2016
저작권
울산대학교 논문은 저작권에 의해 보호받습니다.

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초록· 키워드

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Core-crosslinked star polymers, which have polyethylene oxide (PEO) as a shell and cross-linked poly(2-(methacryloyloxy)ethyl 4-iodobenzoate) (PIEMA) with benzophenone derivatives as a core, have been successfully synthesized by an “arm first” method. PEO-b- PIEMA was prepared via atom transfer radical polymerization (ATRP) of 2-(methacryloyloxy)ethyl 4-iodobenzoate (4-IEMA) with preformed PEO-Br as a macroinitiator. Core-crosslinked star polymers (CCSP) were efficiently synthesized by ultrafast carbonylation reactions under air by flash microwave heating in the presence of dicobalt octacarbonyl in 2-3 min. Gel permeation chromatography (GPC) trace of CCSP showed a drastic shift to a higher molecular weight while a trace of PEO-b-PIEMA diblock copolymer disappeared completely, indicating that the carbonylation reaction was fully progressed. Dynamic light scattering (DLS) results showed that the hydrodynamic diameter of CCSP was larger than that of non-crosslinked micelles. The CCSP with benzophenone was coated on a silicon wafers through a photochemical reaction under UV irradiation, demonstrating that CCSP can be used for the surface modification efficiently.

목차

Contents 5
Abstract 6
1. Introduction 7
2. Experimental
2.1 Characterization 10
2.2 Materials 10
2.3 Synthesis 11
2.3.1 2-(methacryloyloxy)ethyl 4-iodobenzoate (4-IEMA) 11
2.3.2 Coupled 4-IEMA 12
2.3.3 PEO113-Br 13
2.3.4 PEO-b-PIEMA 14
2.3.5 Core-crosslinked star polymer (CCSP) 14
2.3.6 Coating experiment 14
3. Results and Discussion 15
4. Conclusion 25
References 26
국문요약 27

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