[논문]Effect of Polymer Ligand Conformation on the Self-Assembly of Block Copolymers and Polymer-Grafted Nanoparticles within an Evaporative Emulsion

Xu, Meng; Ku, Kang Hee; Lee, Young Jun; Kim, Taewan; Shin, Jaeman J.; Kim, Eun Ji; Choi, Soo-Hyung; Yun, Hongseok; Kim, Bumjoon J.

doi:10.1021/acs.macromol.1c00370

[해외논문] Effect of Polymer Ligand Conformation on the Self-Assembly of Block Copolymers and Polymer-Grafted Nanoparticles within an Evaporative Emulsion

Macromolecules, v.54 no.7, 2021년, pp.3084 - 3092

Xu, Meng (Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea) , Ku, Kang Hee (Department of Chemical Engineering and Applied Chemistry , Chungnam National University , Daejeon 34134 , Republic of Korea) , Lee, Young Jun (Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea) , Kim, Taewan (Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea) , Shin, Jaeman J. (Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea) , Kim, Eun Ji (Department of Chemical and Biomolecular Engineering , Korea Advanced Institute o) , Choi, Soo-Hyung , Yun, Hongseok , Kim, Bumjoon J.

Abstract ▼ AI-Helper

Precise control of spatial distribution of nanoparticles (NPs) within polymeric materials is critical to build nanostructures with programed functionalities. Herein, we systematically investigate the entropy-driven self-assembly of polystyrene-coated Au NPs (Au@PS NPs) and polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymers (BCPs) within a 3D-confined emulsion system. To understand the formation principle of the hybrid particles, four different parameters are examined: (1) the molecular weight of PS ligands (N), (2) the grafting density (σ) of PS ligands, (3) the size of Au NPs (R), and (4) the molecular weight of the BCP matrix (P). Morphological transitions between alternate-layered onions, seeded onions, and crusted onions are observed by carefully manipulating these variables. To account for these phenomena, we propose a modified swelling ratio (P/NSDPB) by considering grafted polymers in the semi-dilute polymer brush (SDPB) regime as the only chains available to interact with BCP matrices. This modified parameter successfully explains the structural transitions of the hybrid particles by including the effect of the chain conformation of the grafted polymers on the hybrid particle assembly. Furthermore, the overall Au@PS NP size (d) is considered as a complementary parameter to P/NSDPB for evaluating the BCP/Au@PS interactions, and together they provide a comprehensive understanding of the hybrid particle self-assembly.[FIG OMISSION]

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저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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