以咔唑二硫代甲酸苄基酯为RAFT试剂引发苯乙烯(St)聚合,制备PSt大分子RAFT试剂,再调控大分子单体丙烯酸聚乙二醇单甲醚酯(A-mPEG)聚合,合成了窄相对分子质量分布、主链和支链不同、相对分子质量不同的两亲梳型嵌段共聚物Pst-b-P(A-mPEG).用1H-NMR和GPC对聚合物结构进行了表征.将制得的PSt-b-P(A-mPEG)与聚醚砜(PES)共混,经相转化法制备了超滤膜,研究了梳型嵌段共聚物中接枝密度与接枝链长度对膜抗污性能的影响.研究表明,在不降低膜的原始通量条件下,PSt-b-P(A-mPEG)改性PES超滤膜具有良好的抗牛血清蛋白(BSA)污染的能力,改性膜比未改性膜显示出较大的通量恢复率.
参考文献
| [1] | John Pieracci;James V. Crivello;Georges Belfort .Increasing membrane permeability of UV-modified poly(ether sulfone) ultrafiltration membranes[J].Journal of Membrane Science,2002(1/2):1-16. |
| [2] | Pieracci J;David DW;Crivello J et al.UV-assisted graft polymerization of N-vinyl-2-pyrrilidinone onto poly(ether sulfone)ultrafiltration membranes;Comparison of dip versus immersion modification techniques[J].American Chemical Society,2000,12:2123-2133. |
| [3] | Wang YQ;Su YL;Ma XL;Sun Q;Jiang ZY .Pluronic polymers and polyethersulfone blend membranes with improved fouling-resistant ability and ultrafiltration performance[J].Journal of Membrane Science,2006(1/2):440-447. |
| [4] | Masahide Taniguchi;Georges Belfort .Low protein fouling synthetic membranes by UV-assisted surface grafting modification: varying monomer type[J].Journal of Membrane Science,2004(1/2):147-157. |
| [5] | Reddy A V R;Mohan D J;Bhattacharya A et al.Surface modification of ultrafihration membranes by preadsorption of a negatively charged polymer(I) Permeation of water soluble polymers and inorganic salt solutions and fouling resistance properties[J].Journal of Membrane Science,2003,214:211-221. |
| [6] | Pasche S.;De Paul SM.;Voros J.;Spencer ND.;Textor M. .Poly(L-lysine)-graft-poly(ethylene glycol) assembled monolayers on niobium oxide surfaces: A quantitative study of the influence of polymer interfacial architecture on resistance to protein adsorption by ToF-SIMS and in situ OWLS[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(22):9216-9225. |
| [7] | Willem Norde;Dick Gage .Interaction of Bovine Serum Albumin and Human Blood Plasma with PEO-Tethered Surfaces:Influence of PEO Chain Length,Grafting Density,and Temperature[J].Langmuir: The ACS Journal of Surfaces and Colloids,2004(10):4162-4167. |
| [8] | 刘群峰,何卫东,叶芳茂.大分子ATRP引发剂α-卤烷基聚苯乙烯的合成及其引发的丙烯酸丁酯接枝聚合[J].高分子学报,2004(02):171-176. |
| [9] | 黄孝华,张海良,王霞瑜.PEO-b-PS两亲性嵌段共聚物的合成与表征[J].精细化工中间体,2005(03):42-45. |
| [10] | Cheng ZP;Zhu XL;Kang ET;Neoh KG .Brush-type amphiphilic diblock copolymers from "living"/controlled radical polymerizations and their aggregation behavior[J].Langmuir: The ACS Journal of Surfaces and Colloids,2005(16):7180-7185. |
| [11] | Li Y G;Shi P J;Zhou Y S et al.Synthesis and characterization of block comb-like copolymer P(A-MPEO)-block-PSt[J].Polymer International,2004,53:349-354. |
| [12] | Feng XS.;Pan CY. .Synthesis of amphiphilic miktoarm ABC star copolymers by RAFT mechanism using maleic anhydride as linking agent[J].Macromolecules,2002(13):4888-4893. |
| [13] | 郭睿威;戚桂村;方道斌 .咔唑二硫代甲酸酯RAFT试剂及制备方法与应用[P].CN 200410072592,2005-07-06. |
| [14] | 李斌,张世海,陈勇,唐黎明,周其庠.聚乙二醇二丙烯酸酯齐聚物的合成及其红外激光固化性能研究[J].高分子材料科学与工程,2001(05):162-164. |
| [15] | Grainger D W;Okano T;Kim S W .Protein adsorption from buffer and plasma onto hydrophilic-hydrophobicpoly(ethylene oxide)-polystyrene multiblock copolymers[J].Journal of Colloid and Interface Science,1989,132:161-175. |
| [16] | 孙永红.聚苯乙烯-g-聚氧乙烯接枝共聚物表面阻抗蛋白质吸附的研究[J].高等学校化学学报,1996(04):642. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%