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Supramolecular Templation of Trapped Entanglements in Polymer Networks
Supramolecular Templation of Trapped Entanglements in Polymer Networks
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153041
- ISBN
- 9798346871880
- DDC
- 540
- 서명/저자
- Supramolecular Templation of Trapped Entanglements in Polymer Networks
- 발행사항
- [Sl] : The University of North Carolina at Chapel Hill, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 167 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
- 주기사항
- Advisor: Zhukhovitskiy, Aleksandr V.
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
- 초록/해제
- 요약Polymer entanglements-topological constraints to chain motion-are fundamental features of polymers that have intrigued scientists for over 80 years. The presence of entanglements in polymers is believed to modify material properties, such as modulus and toughness, which are essential for most applications of soft materials. However, the precise examination of the relationship between how chains entangle and material properties has remained elusive due to both difficulty in synthesizing materials with controlled entanglement topologies and an inability to spectroscopically detect entanglements within the resulting polymer. Controlled installation of entanglements in polymer networks could allow for the direct study of the effects of entanglements on material properties and help to improve existing models for polymer elasticity. In this dissertation, I present my work in the pursuit of installing trapped entanglements in polymer networks and the resulting properties that arise from the inclusion of these mechanical bonds. Chapter 1 provides a background on entanglements, as well as an outline of current methods used to install and characterize entanglements in soft materials. Chapter 2 details an approach to install trapped entanglements in poly(ethylene glycol) (PEG) networks from supramolecular templates composed of phenanthroline-copper(I) complexes. Lastly, Chapter 3 outlines attempts to expand on the installation of trapped entanglements in gels through the creation of an "Olympic" gel (OG), named after its resemblance to the iconic interlocking Olympic rings. Altogether, my work aims to advance our understanding of entanglements in polymer networks by better establishing topology-property relationships in soft materials. Additionally, this work demonstrates a novel approach to tune mechanical properties of polymer networks through the design of a methodology allowing for the controlled installation of entanglements in a network.
- 일반주제명
- Chemistry
- 일반주제명
- Polymer chemistry
- 일반주제명
- Organic chemistry
- 키워드
- Polymer networks
- 기타저자
- The University of North Carolina at Chapel Hill Chemistry
- 기본자료저록
- Dissertations Abstracts International. 86-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211153041
■006m o d
■007cr#unu||||||||
■020 ▼a9798346871880
■035 ▼a(MiAaPQ)AAI31638765
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aKruse, Benjamin J.
■24510▼aSupramolecular Templation of Trapped Entanglements in Polymer Networks
■260 ▼a[Sl]▼bThe University of North Carolina at Chapel Hill▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a167 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-06, Section: B.
■500 ▼aAdvisor: Zhukhovitskiy, Aleksandr V.
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
■520 ▼aPolymer entanglements-topological constraints to chain motion-are fundamental features of polymers that have intrigued scientists for over 80 years. The presence of entanglements in polymers is believed to modify material properties, such as modulus and toughness, which are essential for most applications of soft materials. However, the precise examination of the relationship between how chains entangle and material properties has remained elusive due to both difficulty in synthesizing materials with controlled entanglement topologies and an inability to spectroscopically detect entanglements within the resulting polymer. Controlled installation of entanglements in polymer networks could allow for the direct study of the effects of entanglements on material properties and help to improve existing models for polymer elasticity. In this dissertation, I present my work in the pursuit of installing trapped entanglements in polymer networks and the resulting properties that arise from the inclusion of these mechanical bonds. Chapter 1 provides a background on entanglements, as well as an outline of current methods used to install and characterize entanglements in soft materials. Chapter 2 details an approach to install trapped entanglements in poly(ethylene glycol) (PEG) networks from supramolecular templates composed of phenanthroline-copper(I) complexes. Lastly, Chapter 3 outlines attempts to expand on the installation of trapped entanglements in gels through the creation of an "Olympic" gel (OG), named after its resemblance to the iconic interlocking Olympic rings. Altogether, my work aims to advance our understanding of entanglements in polymer networks by better establishing topology-property relationships in soft materials. Additionally, this work demonstrates a novel approach to tune mechanical properties of polymer networks through the design of a methodology allowing for the controlled installation of entanglements in a network.
■590 ▼aSchool code: 0153.
■650 4▼aChemistry
■650 4▼aPolymer chemistry
■650 4▼aOrganic chemistry
■653 ▼aSupramolecular templates
■653 ▼aTrapped entanglements
■653 ▼aPolymer networks
■653 ▼aPoly(ethylene glycol)
■690 ▼a0485
■690 ▼a0495
■690 ▼a0490
■71020▼aThe University of North Carolina at Chapel Hill▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g86-06B.
■790 ▼a0153
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164753▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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