Crystallization Behavior of "Wet Brush" and "Dry Brush" Blends of PS-b-PEO-b-PS/h-PEO
文献类型：期刊论文
| 作者 | Luo, Chunyan1,2; Han, Xia1,2; Gao, Ying3; Liu, Honglai1,2; Hu, Ying1,2 |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2009-07-15 |
| 卷号 | 113期号:2页码:907-915 |
| 关键词 | Block Copolymer Crystallization Blending Wet Brush Dry Brush |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.30004 |
| 英文摘要 | The crystallization behavior of the blending system consists of homopolymer poly(ethylene oxide) (h-PEO) with different molecular weights, and polystyrene-block-poly (ethylene oxide)-block-polystyrene (PS-b-PEC-b-PS) triblock copolymer has been investigated by DSC measurements. The crystallization of PEO block (b-PEC) in block copolymer Occurs under much lower temperature than that of the h-PEO in the bulk (Delta T > 65 degrees C), which is attributed to the homogeneous nucleation crystallization behavior of the b-PEO microdomains. In both the "dry-brush" and the "wet brush" blending systems, the homogeneous nucleation crystallization temperature of PS-b-PEO-b-PS/h-PEO blends increases due to the increase of the domain size. The heterogeneous nucleation crystallization temperatures of h-PEO in the wet brush blending systems are higher than that of the corresponding h-PEO in the bulk. At the same time, the heterogeneous nucleation crystallization temperature of b-PEO10000 decreases from 43 degrees C to 30 degrees C and 40 degrees C in the h-PEO600 and h-PEO2000 blending systems, respectively, because of the stretching of the PEO chains in the wet brush. However, this kind of phenomenon does not happen in the dry brush blending systems. The self-seeding procedure was used to further ascertain the nucleation mechanism in the crystallization process. As a result, the self-seeding domains have been confirmed, and the difference between the dry brush and wet brush systems has been observed. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 907-915, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000266253100029 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68399]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, Xia |
| 作者单位 | 1.E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China 2.E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Chunyan,Han, Xia,Gao, Ying,et al. Crystallization Behavior of "Wet Brush" and "Dry Brush" Blends of PS-b-PEO-b-PS/h-PEO[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2009,113(2):907-915. |
| APA | Luo, Chunyan,Han, Xia,Gao, Ying,Liu, Honglai,&Hu, Ying.(2009).Crystallization Behavior of "Wet Brush" and "Dry Brush" Blends of PS-b-PEO-b-PS/h-PEO.JOURNAL OF APPLIED POLYMER SCIENCE,113(2),907-915. |
| MLA | Luo, Chunyan,et al."Crystallization Behavior of "Wet Brush" and "Dry Brush" Blends of PS-b-PEO-b-PS/h-PEO".JOURNAL OF APPLIED POLYMER SCIENCE 113.2(2009):907-915. |
入库方式： OAI收割
来源：化学研究所
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