| Nanophase-Separated Structures of Hydrogen-Bonded Interpolymer Complexes of AB Block Copolymer/C Homopolymer in Thin Film with Variable Blending Composition upon Solvent Annealing | |
| Department | 先进润滑与防护材料研究发展中心 |
Wang QH(王齐华)1 ; Wang C(王超)1,2; Wang TM(王廷梅)1; Wang C(王超)
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| The second department | 固体润滑国家重点实验室 |
| 2012 | |
| Source Publication | Journal of Macromolecular Science Part B-Physics
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| ISSN | 0022-2348 |
| Volume | 51Issue:4Pages:671-684 |
| Abstract | The self-assembly behavior of hydrogen-bonded interpolymer complexes of poly(styrene)-b-poly(4-vinylpyridine) (PS-b-P4VP)/poly(4,4′-oxydiphenylenepyrome llitamic) acid (POAA) in thin films with variable POAA weight content upon solvent annealing in benzene/N-methy1-2-pyrrolidone (NMP) mixture vapor was investigated. It was found that when the PS-b-P4VP/POAA thin film blends were annealed in a benzene/NMP (0.97/0.03, in volume) mixture vapor, the thin film blends with a high POAA wt%, above 40%, exhibited a mixture of spherical and rod-like microphase-separated structure, while the thin film blends with a POAA wt% lower than 40% were homogenous. For the blends in thin films with a POAA wt% of less than 40%, the benzene/NMP (0.97/0.03, in volume) vapor was highly miscible with both the PS blocks and P4VP/POAA complexes, which led to decrease of segregated repulsion between the two components and no obvious microphase separation could be achieved. When the PS-b-P4VP/POAA blends in thin films with POAA wt% of 20%, 50%, and 70% were annealed in benzene/NMP with a volume ratio of 0.99/0.01, obvious microphase separation was observed for all films due to increasing PS-selectivity of the mixture vapor. However, the phase structure of blends in thin film with POAA wt% of 50% and 70% consisted of PS microdomains dispersed within the P4VP/POAA matrix, while the blends in thin film with POAA wt% of 20% revealed an opposite phase structure with P4VP/POAA microdomains surrounded by the PS matrix. The transition could be attributed to the increasing free volume of PS domains relative to that of P4VP/POAA due to swelling by benzene vapor during annealing. |
| Keyword | Block Copolymer/homopolymer Hydrogen-bonding Nanophase-separated Structures Self-assembly Solvent Annealing |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1080/00222348.2011.609790 |
| Funding Organization | the National Science Foundation for Distinguished Young Scholars of China (Grant No. 51025517);the InnovativeGroup Foundation of NSFC (Grant No. 50721062);the National 973 Project of China (2007CB607606) |
| Indexed By | SCI |
| If | 0.628 |
| Language | 英语 |
| Funding Project | 聚合物自润滑复合材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3357 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Wang C(王超) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Wang QH,Wang C,Wang TM,et al. Nanophase-Separated Structures of Hydrogen-Bonded Interpolymer Complexes of AB Block Copolymer/C Homopolymer in Thin Film with Variable Blending Composition upon Solvent Annealing[J]. Journal of Macromolecular Science Part B-Physics,2012,51(4):671-684. |
| APA | Wang QH,Wang C,Wang TM,&王超.(2012).Nanophase-Separated Structures of Hydrogen-Bonded Interpolymer Complexes of AB Block Copolymer/C Homopolymer in Thin Film with Variable Blending Composition upon Solvent Annealing.Journal of Macromolecular Science Part B-Physics,51(4),671-684. |
| MLA | Wang QH,et al."Nanophase-Separated Structures of Hydrogen-Bonded Interpolymer Complexes of AB Block Copolymer/C Homopolymer in Thin Film with Variable Blending Composition upon Solvent Annealing".Journal of Macromolecular Science Part B-Physics 51.4(2012):671-684. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 671-684.PDF（1356KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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