以混合比例为控制参数的二元共聚物混合体系自组装
PDF下载 (467)杨冠英,丛 杨,房江华,王 磊,王 媛,高浩其,李瑞丰,郑家军.以混合比例为控制参数的二元共聚物混合体系自组装[J].宁波大学学报(理工版),2013,26(03):85-90.DOI:
YANG Guan-yingi,CONG Yangi,FANG Jiang-huai,WANG Leii,WANG Yuani,GAO Hao-qii,LI Rui-fengi,ZHENG Jia-juni.Self-assembly of Binary Copolymer Mixtures with Blending Ratio as a Controlling Parameter[J].Journal of Ningbo University(Natural Science & Engineering Edition),2013,26(03):85-90.DOI:
| Title: | Self-assembly of Binary Copolymer Mixtures with Blending Ratio as a Controlling Parameter |
| 作者: | 杨冠英, 丛 杨, 房江华, 王 磊, 王 媛, 高浩其, 李瑞丰, 郑家军 |
| Author(s): | YANG Guan-yingi, CONG Yangi, FANG Jiang-huai, WANG Leii, WANG Yuani, GAO Hao-qii, LI Rui-fengi, ZHENG Jia-juni |
| 关键词: | 嵌段共聚物; 自组装; 混合; 选择性溶剂 |
| Keywords: | block copolymer; self-assembly; blending; selective solvent |
| 分类号: | O631 |
| 文献标识码: | A |
| 摘要: | 基于嵌段共聚物共混自组装方法, 将聚苯乙烯-b-聚环氧乙烷(PS-PEO)与聚苯乙烯-b-聚-2-乙烯基吡啶(PS-P2VP)在乙醇-氯仿混合溶剂中进行混合, 并诱导其自组装, 在改变PS-P2VP中各链段长度、分子量以及链段比例的情况下, 得到了一系列形貌和尺寸不同的自组装纳米结构, 并采用原子力显微镜研究了PS-PEO与PS-P2VP的混合比例对自组装纳米结构的影响. 结果表明, PS-P2VP的加入改善了PS-PEO在乙醇-氯仿混合溶剂中的溶解性, 其本质是通过PS-PEO与PS-P2VP的共同自组装, 形成了可在溶液中稳定分散的纳米自组装结构, 改变PS-P2VP的分子量和嵌段比例, 进而对纳米自组装胶束尺寸和结构进行调控. |
| Abstract: | Blending of block copolymers is a convenient and versatile method to control the self-assembly structure of block copolymer. The self-assemblies of the polystyrene-block-polyethylene oxide (PS-PEO) and polystyrene-block-poly-2-vinyl- pyridine (PS-P2VP) blends is studied by Atomic Force Microscope (AFM) in ethanol/chloroform mixtures. The influence of PS-PEO/PS-P2VP blending ratio on the self-assembly structure is investigated. Also the influences of chain length, molecular weight and blending ratio on the self-assembly structures of binary PS-P2VP blends is investigated. The results show that the introducing of PS-P2VP improves the solubility of PS-PEO in ethanol/chloroform mixtures due to the formed stably dispersed self-assembly structure in the solvents by the co-self-assembly of PS-PEO and PS-P2VP, and the self-assembled micelle size and structure of the blending system can be controlled by changing the molecular weight and the chain ratio of PS-P2VP. |
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| 备注/Memo: | 收稿日期: 2013?01?24.基金项目: 宁波市自然科学基金（2011A610120）; 宁波市科技创新团队（2011B82002）; 宁波市高校院所科技研发项目（2011B22017）.第一作者: 杨冠英（1987－）, 男, 吉林延边人, 在读硕士研究生, 主要研究方向: 应用随机过程与复杂网络. E-mail: g_y_yang@126.com *通信作者: 丛 杨（1976－）, 男, 吉林省吉林人, 副教授, 主要研究方向: 纳米功能材料. E-mail: yangcongfu@gmail.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
