Formation of hierarchical structure in microspheres fabricated with microfluidic method based on homopolymer blend
文献类型：期刊论文
| 作者 | Shoji, Ryoka2; Yoshida, Saki2; Kanehashi, Shinji1,2; Okamoto, Kazuo3; Ma, Guanghui1,2,4; Ogino, Kenji1,2 |
| 刊名 | Journal of Fiber Science and Technology
 |
| 出版日期 | 2021-03-15 |
| 卷号 | 77期号:3页码:128-135 |
| 关键词 | Molecular weight - Polymer blends - Styrene - Esters - Fabrication - Microspheres - Evaporation - Microfluidics - Polymethyl methacrylates - Emulsification - Separation |
| ISSN号 | 379875 |
| DOI | 10.2115/FIBERST.2021-0012 |
| 英文摘要 | Hierarchically unique morphologies were observed inside microspheres with a diameter of 70-80 碌m fabricated with the combination of a microfluidic emulsification and a solvent-evaporation method, which were based on binary polymer blends consisting of poly(styrene) (PS) / poly(methyl methacrylate) (PMMA) and poly [4-(N,N-diphenylamino)styrene] (PDAS) / PMMA. The phase separated structure in composites was dependent on type of hydrophobic polymer, the molecular weight of polymers, and the evaporation rate. The particles prepared from high-molecular weight components exhibited macroscopically phase separated structure (incomplete core-shell). In addition, PS / PMMA composite showed the hierarchical microscopic phase separated structure, spherical PMMA domains dispersed in the PS-rich core in the macroscopic core-shell structure. Low molecular PS / PMMA composite formed macroscopically homogeneous, but microscopically bi-continuous phase separated structure. Low molecular PDAS / PMMA composite also afforded the hierarchical structure, where the macroscopical core-shell structure (pseudo core-shell) existed, and the shell contained dispersed micron-sized PDAS domain in PMMA phase, and the core exhibited the bi-continuous structure comprised both components. This hierarchical structure is considered to be formed due to the kinetical limitation, and this was more simplified and thermodynamically more stable structure (sea-island) by lowering the evaporation rate. It is noteworthy that the uniform sized microspheres with hierarchical structure were fabricated only from homopolymer blends without the assist of block or graft copolymer. 漏 2021 The Society of Fiber Science and Technology, Japan |
| 学科主题 | Shells (Structures) |
| 项目编号 | This work is partly supported by Institute of Global Innovation Research in TUAT. We appreciate Mr. Makoto Okano (TUAT) for the advice for SEM measurements. |
| 出版者 | Society of Fiber Science and Technology |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60343]  |
| 作者单位 | 1.Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo; 184-8588, Japan 2.Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo; 184-8588, Japan 3.Ushio Chemix Co., Ltd., Kakegawa-shi, Shizuoka; 437-1302, Japan 4.State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100080, China |
| 推荐引用方式 GB/T 7714 | Shoji, Ryoka,Yoshida, Saki,Kanehashi, Shinji,et al. Formation of hierarchical structure in microspheres fabricated with microfluidic method based on homopolymer blend[J]. Journal of Fiber Science and Technology,2021,77(3):128-135. |
| APA | Shoji, Ryoka,Yoshida, Saki,Kanehashi, Shinji,Okamoto, Kazuo,Ma, Guanghui,&Ogino, Kenji.(2021).Formation of hierarchical structure in microspheres fabricated with microfluidic method based on homopolymer blend.Journal of Fiber Science and Technology,77(3),128-135. |
| MLA | Shoji, Ryoka,et al."Formation of hierarchical structure in microspheres fabricated with microfluidic method based on homopolymer blend".Journal of Fiber Science and Technology 77.3(2021):128-135. |
入库方式： OAI收割
来源：过程工程研究所
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