Crystallization and Phase Behavior in Block Copolymer Solution: An in Situ Small Angle X-ray Scattering Study
文献类型：期刊论文
| 作者 | Zhu, HY; Tian, F; Li, XH; Qiu, HB; Wang, J |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 37期号:11页码:1162-1168 |
| ISSN号 | 0256-7679 |
| DOI | 10.1007/s10118-019-2258-4 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Amphiphilic diblock copolymers self-assemble into a variety of micellar structures with diverse shapes in selective solvents. Here, we study the concentration and temperature dependence of the packing structure of spherical micelles of a polyisoprene-b-poly(2-vinylpyridine) (PI-b-P2VP) diblock copolymer in toluene using synchrotron radiation small angle X-ray scattering (SR-SAXS) and atomic force microscopy (AFM) techniques. Randomly packed spherical micelles are detected in dilute solutions, while in concentrated solutions, face-centered cubic (FCC), body-centered cubic (BCC) mixed crystal structures, and pure BCC crystal structures are observed with an increase in concentration. In situ SAXS experiments on the FCC/BCC mixed crystal structures reveal a novel FCC/BCC -> BCC -> Disorder -> BCC phase behavior during the thermal annealing process. These results demonstrated that the BCC phase is apparently more stable than the FCC phase in the current sphere-packing system and FCC/BCC is a metastable state. The incompatibility of the PI and P2VP blocks decreases at a higher temperature and renders the variation of domain spacing. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32018]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai 201204, Peoples R China; 4.Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, HY,Tian, F,Li, XH,et al. Crystallization and Phase Behavior in Block Copolymer Solution: An in Situ Small Angle X-ray Scattering Study[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2019,37(11):1162-1168. |
| APA | Zhu, HY,Tian, F,Li, XH,Qiu, HB,&Wang, J.(2019).Crystallization and Phase Behavior in Block Copolymer Solution: An in Situ Small Angle X-ray Scattering Study.CHINESE JOURNAL OF POLYMER SCIENCE,37(11),1162-1168. |
| MLA | Zhu, HY,et al."Crystallization and Phase Behavior in Block Copolymer Solution: An in Situ Small Angle X-ray Scattering Study".CHINESE JOURNAL OF POLYMER SCIENCE 37.11(2019):1162-1168. |
入库方式： OAI收割
来源：上海应用物理研究所
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