私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關鏈接
聯系方式
  • 通信地址:上海市閔行區東川路800號上海交通大學化學化工學院化學A樓525
  • 郵編:200240
  • 電話:021-54742664
  • 傳真:
  • Email:yfzhou@sjtu.edu.cn
當前位置:> 首頁 > 論文著作 > 正文
Temperature-Responsive Phase Transition of Polymer Vesicles: Real-Time Morphology Observation and Molecular Mechanism
作者:Zhou, Y. F.; Yan, D. Y.; Dong, W. Y.; Tian, Y.
關鍵字:Polymer Vesicles
論文來源:期刊
具體來源:J. Phys. Chem. B 2007, 111, 1262. http://pubs.acs.org/doi/pdf/10.1021/jp0673563
發表時間:2007年
Novel thermosensitive polymer vesicles with controlled temperature-responsive phase transition at the lower critical solution temperature (LCST) varying from 8 to 81 °C were prepared via self-assembly of amphiphilic hyperbranched star copolymers having a hydrophobic hyperbranched poly[3-ethyl-3-(hydroxymethyl)oxetane] (HBPO) core and many hydrophilic polyethylene oxide (PEO) arms. Real-time optical microscopic observation revealed that the polymer vesicles have undergone sequential morphology changes including enrichment, aggregation, fusion, and vesicle-to-membrane transformation near the LCST. Molecular-level investigation indicates that the LCST transition results from the decreasing water solubility of the polymer vesicles with increasing temperature based on the partial dehydration of the PEO vesicle corona. On the basis of these results, a LCST transition mechanism, in view of the molecular configuration, balance of hydrophilic and hydrophobic moieties, and the vesicle morphology transformations, was proposed. As far as we know, the work presented here is the first demonstration of thermosensitive vesicles based on PEO, and the finding may be useful to design the thermosensitive core?shell structures by introducing the PEO segments.
主站蜘蛛池模板: 东兰县| 江阴市| 凤山市| 张北县| 藁城市| 介休市| 宁德市| 广元市| 平利县| 千阳县| 玉溪市| 永城市| 五华县| 钟祥市| 静安区| 保靖县| 河北区| 织金县| 盐亭县| 新河县| 都江堰市| 日照市| 定西市| 乳山市| 木里| 郎溪县| 固阳县| 舟山市| 连江县| 灵丘县| 收藏| 莫力| 灵武市| 班玛县| 玉林市| 开封县| 天长市| 平定县| 蒙阴县| 清水县| 邓州市|