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:廣西桂林市桂林理工大學材料科學與工程學院
  • 郵編:541004
  • 電話:0773-5896438
  • 傳真:
  • Email:gfzzhouli@gmail.com
當前位置:> 首頁 > 論文著作 > 正文
Amphibious polymer-functionalized CdTe quantum dots: synthesis, thermoresponsive self-assembly, and photoluminescent properties
作者:Li Zhou, Chao Gao, Weijian Xu
關鍵字:CdTe quantum dots,thermo-sensitive,self-assembly
論文來源:期刊
具體來源:J. Mater. Chem 2009, 19, 5655-5664
發表時間:2009年
A straightforward strategy is presented to functionalize aqueous-phase synthesized CdTe quantum dots (QDs) with thermo-sensitive poly(2-(dimethylamino) ethyl methacrylate) (PDMAEMA) via direct surface-initiated oxyanionic vinyl polymerization. The polymer grafting quantity can be facilely controlled in a wide range up to 95.2wt% by adjusting the weight feed ratio of monomer to pristine QDs. The polymer-grafted QDs still retain good fluorescence properties in solution, solid polymer matrix, and on surfaces of silica (SiO(2)) sphere. The resulting QD@PDMAEMAs show excellent solubility both in water and organic solvents (e. g., chloroform, dichloromethane, dioxane, ethyl acetate, acetone, methanol, and N, N-dimethylformamide). We have called them amphibious QDs. The thermo-sensitive PDMAEMAs make QDs accessible to self-assemble reversibly by adjusting temperature when the grafted polymer content is over a certain value. The self-assembly process and resulting structure were demonstrated by TEM, variable temperature dynamic light scattering (DLS) and UV-vis spectrometer. Because PDMAEMA is a kind of positive polyelectrolyte, QD@ PDMAEMAs were used as building blocks in the layer-by-layer self-assembly process on the surface of SiO(2) spheres, affording fluorescent SiO(2) spheres.
主站蜘蛛池模板: 南陵县| 揭阳市| 屯门区| 泊头市| 腾冲县| 故城县| 泰宁县| 廉江市| 大荔县| 临潭县| 手游| 苏尼特右旗| 清水河县| 政和县| 沅江市| 南溪县| 蒲江县| 贵港市| 吴川市| 溧水县| 曲周县| 阳原县| 龙胜| 吉隆县| 元阳县| 鹤庆县| 潼南县| 海南省| 五华县| 新余市| 宿迁市| 台东县| 云南省| 枣强县| 马龙县| 建阳市| 神木县| 蒙城县| 昌平区| 榕江县| 舞钢市|