由原子转移自由基聚合(ATRP)分别制得了分子量不同、分子量分布≤1.2的聚甲基丙烯酸叔丁酯(PtBMA)和聚苯乙烯(PSt-Br).进而使PtBMA在酸性条件下水解,得到了分子量适中的亲水性聚甲基丙烯酸(PMAA).在1,8-2氮双环[5.4.0]-7-十一烯存在的条件下,利用PSt-Br链端的溴原子与PMAA的侧羧基进行亲核取代反应,成功地将PSt链嫁接到亲水性PMAA聚合物链上.改变PSt-Br的分子量可实现对嫁接链数量的控制,并可根据需要调整主链与枝链的长度,形成不同的双亲性接枝共聚物,其在水中的自组装结果显示,形成的纳米颗粒基本保持球形、具有核壳结构.
参考文献
| [1] | George F.Fanta;Frederick C.Felker;Randal L.Shogren .Graft polymerization of acrylonitrile onto spherocrystals formed from jet cooked cornstarch[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2004(1):77-84. |
| [2] | Lee CT;Huang CP;Lee YD .Synthesis and characterizations of amphiphilic poly(L-lactide)-grafted chondroitin sulfate copolymer and its application as drug carrier.[J].Biomolecular engineering,2007(1):131-139. |
| [3] | 钱浩,徐华明,黄胜梅.聚苯乙烯-g-聚乙二醇的制备及其表面改性作用[J].应用化学,2007(09):1027-1031. |
| [4] | 彭丹,李垚功,张晓环,陆国林,冯纯,黄晓宇.窄分子量分布聚丙烯酸-g-聚甲基丙烯酸酯接枝共聚物的合成[J].化学学报,2007(19):2144-2150. |
| [5] | Orfanou K.;Topouza D.;Sakellariou G.;Pispas S. .Graftlike interpolymer complexes from poly(2-vinylpyridine) and end-sulfonic acid polystyrene and polyisoprene: Intermediates to noncovalently bonded block copolymer-like micelles[J].Journal of Polymer Science, Part A. Polymer Chemistry,2003(16):2454-2461. |
| [6] | 孙文东,胡志成,潘才元.侧基为苯胺四聚体的聚丙烯酰胺的合成和表征[J].高分子学报,2006(05):692-696. |
| [7] | 陆剑燕,顾瑾,倪忠斌,刘晓亚,陈明清.PMAA接枝聚苯乙烯复合微球的制备与性能[J].高分子材料科学与工程,2009(05):29-32. |
| [8] | Wei Yang;Tatsuo Kaneko;Xiao-Ya Liu;Ming-Qing Chen;Mitsuru Akashi .Bulk Synthesis of Poly(tert-butyl methacrylate)Long Macromonomer with Narrow Distribution by Atom Transfer Radical Polymerization and Nucleophilic Substitution[J].Chemistry Letters,2006(2):222-223. |
| [9] | 华慢,杨伟,薛乔,陈明清,刘晓亚,杨成.两亲性嵌段共聚物PS-b-PMAA的合成与胶束化行为研究[J].化学学报,2005(07):631-636. |
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%