| Adsorption of TPPS and supramolecular self-assembly on EVAL membrane surface |
| Authors： Zhang Yuxin, Zhao Lizhi, Zhang Yuzhong, Ye Hui, Liu Manman, Li Hong |
| Units： 1. School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China; 2. State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin, 300387, China. |
| KeyWords： TPPS; DMAEMA ; EVAL |
| ClassificationCode： |
| year,volume(issue):pagination： 2015,35(1):1-8 |
|
Abstract： |
|
TPPS can spontaneously assemble into supramolecular aggregates under certain conditions. A supramolecular membrane was prepared based on TPPS supramolecular aggregates and membrane materials. In this paper, EVAL-g-PDMAEMA membrane was prepared by ultraviolet radiation grafting with EVAL as the raw membrane and DMAEMA as the monomer. The TPPS was loaded on EVAL and EVAL-g-PDMAEMA membrane via non-covalent as hydrogen bonds, electrostatic interactions, etc. The effects of pH, ionic strength and grafting degree on the adsorption process and isothermal adsorption mechanism of TPPS was studied. The results showed that, the maximum absorption of TPPS on the grafted membrane appeared at pH=3.6, while on the raw membrane at pH=7. The increase of ionic strength caused an adverse impact on the adsorption of TPPS on the membrane surface. While the adsorption amount of TPPS increased with the increase of EVAL-g-PDMAEMA grafting degree. The adsorption process can be well described by Langmuir isotherm model. The aggregation state of TPPS and the conditions of constructing a supramolecular structure was studied by changing the pH of the EVAL-g-PDMAEMA/TPPS membrane with aid of UV reflectance spectroscopic. The results show that, at pH<1, TPPS formed supramolecular J-aggregates on the EVAL and EVAL-g-PDMAEMA membrane surface, while at pH>1, only formed H-aggregates on EVAL-g-PDMAEMA membrane surface. Besides, higher grafting degree of DMAEMA contributed to the formation of TPPS aggregates, further to the building of supramolecular membrane. |
|
Funds： |
| 国家自然科学基金项目（51173132，21204064，50973083，51373120），天津市应用基础及前沿技术研究计划重点项目（11JCZDJC21200），高等学校博士学科点专项科研基金（20111201110003），中空纤维膜材料与膜过程省部共建国家重点实验室培育基地开放课题。 |
|
AuthorIntro： |
| 张玉新（1986—），男，山东德州人，硕士研究生 |
|
Reference： |
|
[1] Lehn J M. Supramolecular Chemistry: Concepts and Perspectives[M]. Weinheim: Vch,1995,154,1-9. [2] 沈家骢等. 超分子研究进展[J]. 中国科学院院刊，2004，6（19），420-424. [3] Lehn J M. Toward self-organization and complex matter[J]. Science, 2002 , 295(29) : 2400 - 2403. [4] Hamley I W. Nanotechnology with soft materials[J]. Angew Chem Int Ed,2003,42(15):1692-1712. [5] Yan D, Zhou Y, Hou J. Supramolecular self-assembly of macroscopic tubes[J]. Science,2004,303(2):65-67. [6] 于澍燕，张忠兴，李慧等. 由功能化穴醚核与六个双金(I) 配位单元构筑的金属基树形超分子的自组装及发光性质[J]. 高等学校化学学报，2005，26（2）：376-378. [7] Synytsya A, Blafkova P, Volka K. Interaction of meso-tetrakis(4-sulphonatophenyl) porphine with chitosan[J]. Spectrochemica Acta,2006,21(5):4-6. [8] 张红芬，潘景浩，常海波等. 用三种不同方法研究 TPPS与 DM-β-CD的相互作用[J]. 分析科学学报，2006，11（2）：3-4. [9] 黄 涛，王永强，田永驰等. 卟啉在表面活性剂溶液中的聚集态[J]. 武汉化工学院学报, 1998, 20(5): 1- 4. [10] Bo Liao, Ruiguang Liu, Yong Huang. A Supramolecular Chiroptical Switch Based on Chitosan and Anionic Porphyrin Complex Film[J]. Polymer,2007,10(39):1071-1077. [11] Lizhi Zhao, Rui Xiang, Rujiang Ma, Xin Wang, Yingli An, and Linqi Shi*, Chiral Conversion and Memory of TPPS J-aggregates in Complex Micelles: PEG-b-PDMAEMA/TPPS[J]. Langmuir, 2011, 27 (18):11554–11559. [12]胡晖，范晓东. 聚（甲基丙烯酸N, N-二甲氨基乙酯/ 丙烯酸2-乙基己酯）的温度及pH 敏感性能的研究[J]. 精细化工，2003，20：65-68. [13] 裴广玲，杜启云，成国祥. 螯合树脂填充膜的制备及其对铜（Ⅱ）的吸附研究[J]. 膜科学与技术，2001，10：14-19. [14]孙健新，张玉忠等. 4A分子筛掺杂 PES膜吸附剂的制备及其对Cu2+吸附性能研究[J]. 天津工业大学学报，2013，1(32)：5-13. [15] 叶卉. 乙烯-乙烯醇共聚物分离膜制备及其乳清资源化利用研究[D]. 天津工业大学，2011：127-129. [16] 王玥，杜守颖等. 芍药苷大孔树脂静态吸附动力学研究[J]. 北京中医药大学学报,2012,35(1):57-61. [17] Kimberly L. Jones, Charles R. O’Melia. Protein and humic acid adsorption onto hydrophilic membrane surfaces: effects of pH and ionic strength[J]. Journal of Membrane Science,2000,165:31-46. |
|
Service： |
| 【Download】【Collect】 |
《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com
京公网安备11011302000819号