Straightforward Preparation of Telechelic H-bonding Polymers From Difunctional Trithiocarbonates and Supramolecular Block Copolymers Thereof
Straightforward Preparation of Telechelic H-bonding Polymers From Difunctional Trithiocarbonates and Supramolecular Block Copolymers Thereof
复制标题
由双官能三硫代碳酸酯直接制备遥爪氢键聚合物及其超分子嵌段共聚物
DOI：
10.1021/ma200540u
复制
发表时间：
2011
期刊：
影响因子：
5.5
通讯作者：
J. Bernard
中科院分区：
文献类型：
--
作者：
Arthur Bertrand;Senbin Chen;Grégoire Souharce;C. Ladavière;E. Fleury;J. Bernard
我们报告了一个原始的策略，直接制备精确定义的遥爪氢键聚合物及其超分子嵌段共聚物的产生。利用α，ω-官能化的对称三硫代碳酸酯，通过RAFT聚合一步合成了一系列杂互补氢键聚合物.所得到的遥爪大分子选择性地与杂互补的α-DAP功能化链相互作用，在溶液和本体中得到超分子嵌段共聚物。这些自组装证明了1H NMR和流变测量。作为这些协会的结果，而非功能性的均聚物共混物倾向于微相分离观察到的AFM分析，氢键均聚物共混物表现出均匀的微观结构，在雅阁与超分子嵌段共聚物的形成，促进稳定的聚合物之间的界面。
We report an original strategy toward the straightforward preparation of precisely defined telechelic H-bonding polymers and the generation of supramolecular block copolymers thereof. Making use of an α,ω-functionalized symmetrical trithiocarbonate bearing thymine groups at both chain ends, a series of heterocomplementary H-bonding polymers were effortlessly generated by RAFT polymerization in a one step process. The resulting telechelic macromolecules selectively interacted with heterocomplementary α-DAP-functionalized chains to afford supramolecular block copolymers in solution and in bulk. These self-assemblies were evidenced by 1H NMR and rheological measurements. As a consequence of these associations, whereas non functional homopolymer blends tended to microphase separate as observed by AFM analysis, H-bonding homopolymer blends exhibited homogeneous microstructures in accord with the formation of supramolecular block copolymers promoting the stabilization of the interface between the polymers.