PDMS‐Containing Alternating Copolymers Obtained by Click Polymerization
PDMS‐Containing Alternating Copolymers Obtained by Click Polymerization
复制标题
DOI：
10.1002/macp.201400178
复制
发表时间：
2014-07
影响因子：
2.5
通讯作者：
Victor Bretzler;M. Grübel;S. Meister;B. Rieger
中科院分区：
文献类型：
--
作者：
Victor Bretzler;M. Grübel;S. Meister;B. Rieger
采用铜催化的炔-叠氮环加成（CuAAC）点击聚合反应，通过直接的AA/BB加成聚合方法合成了新型含聚二甲基硅氧烷（PDMS）的交替共聚物。CuAAC反应的多功能性允许掺入一系列在几何形状、大小和官能度方面变化的不同单体。的结构-性能的关系显示，聚合物的性能不仅取决于类型的功能纳入，但也对共聚单体的大小和几何形状。所涵盖的性质范围是非常有趣的，从粘性油到脆性固体。有针对性地应用单体甚至可以获得热塑性弹性体的典型性能。关于加速聚合反应的其他研究支持关于双核活性物种的机理考虑。
The copper(I)‐catalyzed alkine–azide cycloaddition (CuAAC) click polymerization is used for the synthesis of novel poly(dimethylsiloxane) (PDMS)‐containing alternating copolymers in a straightforward AA/BB polyaddition approach. The versatility of the CuAAC reaction allows incorporation of a series of different monomers varying in geometry, size, and functionality. A structure–property relation is revealed that shows that the polymer properties are dependent not only on the type of functionality incorporated but also on the size and geometry of the comonomer. The spectrum of properties that can be covered is highly interesting, ranging from viscous oils to brittle solids. Targeted application of monomers even gives access to properties that are typical for thermoplastic elastomers. Additional studies concerning the acceleration of the polymerization reaction support mechanistic considerations about a binuclear active species.