Polysilylether: A Degradable Polymer from Biorenewable Feedstocks
作者:Chen Cheng、Annabelle Watts、Marc A. Hillmyer、John F. Hartwig
DOI:10.1002/anie.201606282
日期:2016.9.19
The synthesis of polysilylethers (PSEs) using a monomer derived from a biorenewablefeedstock is reported. The AB‐type monomer was synthesized from undecenoic acid through hydrosilylation and reduction, and the polymerization was catalyzed by earth‐abundant metal salts. High‐molar‐mass products were achieved, and the degree of polymerization was controlled by varying the amount of an AA‐type monomer
报道了使用衍生自生物可再生原料的单体合成聚甲硅烷基醚(PSE)。AB型单体是由十一碳烯酸通过氢化硅烷化和还原反应合成的,并且聚合反应是由富含土的金属盐催化的。获得了高摩尔质量的产物,并且通过改变反应中AA型单体的量来控制聚合度。PSE具有良好的热稳定性和较低的玻璃化转变温度(T g ≈−67°C)。为了证明PSE的效用,聚氨酯是由低摩尔质量的羟基telechelic PSE合成的。
Synthesis of Poly(silyl ethers) via Iridium-Catalyzed Dehydrocoupling Polymerization
作者:Xiao-Yong Zhai、Shu-Bo Hu、Lei Shi、Yong-Gui Zhou
DOI:10.1021/acs.organomet.8b00316
日期:2018.7.23
Poly(silylethers) (PSEs) are promising degradable materials, and the development of an efficient method to produce them from readily available materials is highly desirable. Herein, we present a dehydrocoupling polymerization of AB-type silyl alcohol monomers catalyzed by homogeneous iridium(I) complexes bearing a bisphosphine ligand. A series of PSEs containing aliphatic or aromatic linkers have
聚(甲硅烷基醚)(PSE)是有前途的可降解材料,非常需要开发一种从容易获得的材料生产它们的有效方法。在这里,我们提出了AB型甲硅烷基醇单体的脱氢偶联聚合反应,该反应是由带有双膦配体的均相铱(I)配合物催化的。已经合成了一系列含有脂族或芳族接头的PSE。可以通过改变铱/双膦配合物的配体来调节PSE的PDI。获得了中等至高产率的数均分子量(M n)高达9.27×10 4的聚合物。PSE具有良好的热稳定性和较低的玻璃化转变温度(T g = -42至-83°C)。