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The Synthesis and Emergent Properties of Crystalline and Mechanically Interlocked Polymer Architectures
The Synthesis and Emergent Properties of Crystalline and Mechanically Interlocked Polymer Architectures
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152810
- ISBN
- 9798346857877
- DDC
- 540
- 서명/저자
- The Synthesis and Emergent Properties of Crystalline and Mechanically Interlocked Polymer Architectures
- 발행사항
- [Sl] : Northwestern University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 201 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
- 주기사항
- Advisor: Dichtel, William R.
- 학위논문주기
- Thesis (Ph.D.)--Northwestern University, 2024.
- 초록/해제
- 요약Polymers are one of the most common classes of materials today and have been the basis of countless technological advancements. Traditionally, they are linear, acyclic structures. In the past few decades, new classes of polymers have been discovered and developed. One such class is two-dimensional polymers (2DPs), which are covalently-linked planar, sheet-like structures formed across two dimensions. These sheets can additionally stack on each other and form narrow channels of open space, resulting in materials with crystallinity, porosity, and protected cavities. The functionalities and geometries of these monomers can be tuned, directing the topology and functionality of the resulting polymer sheets. These materials can be used for a variety of applications including catalysis and chemical separations and can be integrated into electronic and spintronic devices. Another class of polymers developed recently includes poly[n]catenanes, which are polymer chains consisting of n interlocking rings. The rings are comprised of covalent bonds, offering chemical stability, while the rings are held together via mechanically interlocking bonds, offering conformational flexibility to the polymer chain. This combination of stability and flexibility for an organic material is unique, but applications have been underexplored due to the difficulty of synthetic accessibility and preparing poly[n]catenanes on scale.This thesis advances the development and application scope of both 2DPs and poly[n]catenanes. In Chapter 1, I discuss historical work for each polymer class, followed by work done in the Dichtel lab towards each frontier. In Chapter 2, I demonstrate that the side-chain interactions in 2DP pores help dictate the stacking order of the overall structure. This directly impacts the application scope of 2DPs, as different applications may rely on different degrees of sheet stacking. In Chapter 3, I demonstrate that 2DPs can host radical anions along the polymer backbone, acting as quantum bits, which are functional units for quantum information science applications. Using 2DPs for qubits offers several advantages over current molecular and framework systems, and this distinction is covered in depth. In Chapter 4, I outline a new procedure to produce long-chain poly[n]catenanes on scale. This approach relies on combining macrocyclization, catenation, and polymerization in one pot using mild conditions. The monomers used are acyclic and readily accessible on large scale, overcoming the synthetic limitations of previous poly[n]catenane syntheses. Taken together, this thesis explores the synthesis, application scope, and structure-property relationships of both 2DPs and poly[n]catenanes as emerging classes of materials.
- 일반주제명
- Chemistry
- 일반주제명
- Physical chemistry
- 일반주제명
- Polymer chemistry
- 키워드
- Crystalline
- 기타저자
- Northwestern University Chemistry
- 기본자료저록
- Dissertations Abstracts International. 86-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152810
■006m o d
■007cr#unu||||||||
■020 ▼a9798346857877
■035 ▼a(MiAaPQ)AAI31557779
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aOanta, Alexander Kevin.▼0(orcid)0000-0002-3188-2240
■24510▼aThe Synthesis and Emergent Properties of Crystalline and Mechanically Interlocked Polymer Architectures
■260 ▼a[Sl]▼bNorthwestern University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a201 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-06, Section: B.
■500 ▼aAdvisor: Dichtel, William R.
■5021 ▼aThesis (Ph.D.)--Northwestern University, 2024.
■520 ▼aPolymers are one of the most common classes of materials today and have been the basis of countless technological advancements. Traditionally, they are linear, acyclic structures. In the past few decades, new classes of polymers have been discovered and developed. One such class is two-dimensional polymers (2DPs), which are covalently-linked planar, sheet-like structures formed across two dimensions. These sheets can additionally stack on each other and form narrow channels of open space, resulting in materials with crystallinity, porosity, and protected cavities. The functionalities and geometries of these monomers can be tuned, directing the topology and functionality of the resulting polymer sheets. These materials can be used for a variety of applications including catalysis and chemical separations and can be integrated into electronic and spintronic devices. Another class of polymers developed recently includes poly[n]catenanes, which are polymer chains consisting of n interlocking rings. The rings are comprised of covalent bonds, offering chemical stability, while the rings are held together via mechanically interlocking bonds, offering conformational flexibility to the polymer chain. This combination of stability and flexibility for an organic material is unique, but applications have been underexplored due to the difficulty of synthetic accessibility and preparing poly[n]catenanes on scale.This thesis advances the development and application scope of both 2DPs and poly[n]catenanes. In Chapter 1, I discuss historical work for each polymer class, followed by work done in the Dichtel lab towards each frontier. In Chapter 2, I demonstrate that the side-chain interactions in 2DP pores help dictate the stacking order of the overall structure. This directly impacts the application scope of 2DPs, as different applications may rely on different degrees of sheet stacking. In Chapter 3, I demonstrate that 2DPs can host radical anions along the polymer backbone, acting as quantum bits, which are functional units for quantum information science applications. Using 2DPs for qubits offers several advantages over current molecular and framework systems, and this distinction is covered in depth. In Chapter 4, I outline a new procedure to produce long-chain poly[n]catenanes on scale. This approach relies on combining macrocyclization, catenation, and polymerization in one pot using mild conditions. The monomers used are acyclic and readily accessible on large scale, overcoming the synthetic limitations of previous poly[n]catenane syntheses. Taken together, this thesis explores the synthesis, application scope, and structure-property relationships of both 2DPs and poly[n]catenanes as emerging classes of materials.
■590 ▼aSchool code: 0163.
■650 4▼aChemistry
■650 4▼aPhysical chemistry
■650 4▼aPolymer chemistry
■653 ▼aCrystalline
■653 ▼aPolymer architectures
■653 ▼aTwo-dimensional polymers
■653 ▼aQuantum information science
■690 ▼a0485
■690 ▼a0495
■690 ▼a0494
■71020▼aNorthwestern University▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g86-06B.
■790 ▼a0163
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163922▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
