线形两嵌段(SB)、线形三嵌段[(SB)2]和星形四臂三嵌段[(SB)4]的苯乙烯-丁二烯嵌段共聚物(SBS)溶于选择性溶剂丁酮后的聚集自组装行为差异极大.粘度测定和透射电镜观察结果表明,在溶液中,(SB)4由其内部聚丁二烯嵌段(PBD)聚集自组装成单分子核-壳结构;(SB)2在低于转折浓度时由多个分子的PBD聚集自组装成开放式核-壳结构,在高于转折浓度时则成为稳定聚集体;而SB自组装成为宏观不溶的特大胶体微粒.
参考文献
| [1] | Jenekhe S A;Chen X L .[J].Science,1999,283:372. |
| [2] | Weiss P S .[J].NATURE,2001,413:585. |
| [3] | Gunther J.;Stupp SI. .Surface patterns of supramolecular materials[J].Langmuir: The ACS Journal of Surfaces and Colloids,2001(21):6530-6539. |
| [4] | Torchilin VP. .Structure and design of polymeric surfactant-based drug delivery systems [Review][J].Journal of Controlled Release: Official Journal of the Controlled Release Society,2001(2/3):137-172. |
| [5] | Yang L;Alexandridis P .[J].Current Opinion in Colloid and Interface Science,2000,5:132. |
| [6] | Hadjichristidis N;Iatrou H;Pitsikalis M et al.[J].Progress in Polymer Science,2005,30(07):725. |
| [7] | Rodriguez-Hernandez J;Checot F;Gnanou Y et al.[J].Progress in Polymer Science,2005,30(07):691. |
| [8] | Xiong X;Eckelt J;Wolf B A et al.[J].Journal of Chromatography A,2006,1110:53. |
| [9] | Cheng R;Yang Y;Yan X .[J].Polymer,1999,40:3773. |
| [10] | Yang H;Zhu P;Peng Z et al.[J].European Polymer Journal,2001,37:1939. |
| [11] | Yang H;Li H;Zhu P et al.[J].Polymer Testing,2004,23:897. |
| [12] | Awan M A;Dimonie V L;Ou-Yang D et al.[J].Langmuir,1997,13:140. |
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