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Facile strategies to improve the economy of polymer synthesis and self-assembly : 고분자 합성과 자기 조립 현상의 경제성을 향상시키는 손쉬운 전략
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 최태림 | - |
dc.contributor.author | 이인환 | - |
dc.date.accessioned | 2017-07-14T05:57:01Z | - |
dc.date.available | 2017-07-14T05:57:01Z | - |
dc.date.issued | 2016-02 | - |
dc.identifier.other | 000000132787 | - |
dc.identifier.uri | https://hdl.handle.net/10371/125305 | - |
dc.description | 학위논문 (박사)-- 서울대학교 대학원 : 화학부 고분자화학 전공, 2016. 2. 최태림. | - |
dc.description.abstract | Preparation of polymers and their self-assembled nanostructures with high controllability, efficiency, and economy is central basis for the development of polymeric nanomaterials. To address this issue, following four chapters described facile strategies for the synthesis and self-assembly of polymers with economic consideration.
Chapter 2 described the concept of step-economic in situ nanoparticlization of conjugated polymers (INCP) with addressing the effect of core forming block. Poly(para-phenylene) was used as first block, and highly insoluble polythiophene or poly(3-methylthiophene) was used as second block to induce in situ self-assembly. We found that solubility and packing mode of second block were important factors to determine nanostructures. Chapter 3 described step-economic in situ nanoparticlization of conjugated polymers with addressing the effect of shell forming block. Poly(3-alkylthiophene) was used as first block, and highly insoluble polythiophene was used as second block to induce in situ self-assembly. It was found that hydrodynamic volume of first block and well-defined polymer structure were important factors to modulate the shape of nanostructures. Chapter 4 presented the price-economic synthesis of the conjugated polymers using recyclable Pd-Fe3O4 heterodimer nanocrystal. AB-alternating copolymers were synthesized by Suzuki-Miyaura polycondensation with Pd-Fe3O4 nancrystals. Significantly, Pd-Fe3O4 bimetallic nanocrystals were easily recovered by magnet and recyclable with minimal Pd leaching. Chapter 5 reported the atom and step-economic synthesis of poly(N-sulfonylamidine)s using Cu-catalyzed multicomponent polymerization. Optimization of polymerization condition enabled the synthesis of poly(N-sulfonylamidine) with high molecular weight and yield. Furthermore, this polymerization expanded to the library synthesis of poly(N-sulfonylamidine). This research is significant because this polymerization overcome previous limitations such as low molecular weight, defect in polymer structure, and narrow substrate scope. In summary, this thesis described economic synthesis of polymers and self-assembled nanostructures via INCP, heterogeneous catalysis, and multi-component polymerization. We believe that these strategies will expand their scope and suggest a new platform for the preparation of useful nanomaterials. | - |
dc.description.tableofcontents | Chapter 1. Introduction to in situ nanoparticlization of conjugated polymer (INCP) 1
Introduction 2 In situ nanoparticlization of conjugated polymers (INCP) 3 Previous examples of in situ nanoparticlization of conjugated polymer (INCP) and thesis research 5 References 6 Chapter 2. In situ nanoparticlization of fully conjugated block copolymers using Grignard Metathesis method: Effect of core block 7 Background 8 Part I. In situ nanoparticlization of poly(2,5-dihexyloxy-1,4-phenylene)-block-polythiophene (PPP-b-PT) 9 Introduction 9 Results and Discussions 11 Conclusion 16 Part II. In situ nanoparticlization of poly(2,5-dihexyloxy-1,4-phenylene)-block-poly(3-methylthiophene) (PPP-b-P3MT) 16 Introduction 16 Results and Discussions 17 Conclusion 27 Part III. In situ nanoparticlization of PPP first block with block and random copolymers of thiophene and (3-methylthiophene) as second block 27 Introduction 27 Results and Discussions 28 Conclusion 32 References 32 Chapter 3. In situ nanoparticlization of fully conjugated block copolymers using Grignard Metathesis method: Effect of shell block 34 Background 35 Part I. In situ nanoparticlization of poly(3-(2-ethylhexyl) thiophene)-block-polythiophene (P3EHT-b-PT) 36 Introduction 36 Results and Discussions 37 Conclusion 44 Part II. In situ nanoparticlization of poly(3-(2-octyldodecyl)thiophene)-block-polythiophene (P3ODT-b-PT) 45 Introduction 45 Results and Discussions 45 Conclusion 49 Part III. In situ nanoparticlization of poly(thiophene-alt-(paraphenylene))-block-polythiophene (PTPP-b-PT) 50 Introduction 50 Results and Discussions 51 Part IV. In situ nanoparticlization of poly(3-hexylthiophene)-block-polythiophene (P3HT-b-PT) using externally initiating precatalyst 53 Introduction 53 Conclusion 58 References 58 Chapter 4. Pd-Fe3O4 heterodimer nanocrystal-catalyzed Suzuki-Miyaura polycondensation 60 Introduction 61 Results and Discussions 63 Conclusion 69 References 69 Chapter 5. Cu-catalyzed multicomponent polymerization: Synthesis of Poly(N-sulfonylamidine) 71 Introduction 72 Results and Discussions 74 Conclusion 81 References 81 국문 초록 83 | - |
dc.format | application/pdf | - |
dc.format.extent | 4293125 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | 고분자합성 | - |
dc.subject | 자기조립현상 | - |
dc.subject.ddc | 540 | - |
dc.title | Facile strategies to improve the economy of polymer synthesis and self-assembly | - |
dc.title.alternative | 고분자 합성과 자기 조립 현상의 경제성을 향상시키는 손쉬운 전략 | - |
dc.type | Thesis | - |
dc.description.degree | Doctor | - |
dc.citation.pages | iv, 84 | - |
dc.contributor.affiliation | 자연과학대학 화학부 | - |
dc.date.awarded | 2016-02 | - |
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