Cobalt-catalyzed selective dehydrocoupling polymerization of prochiral silanes and diols
作者： Xiao-Yong Zhai , Xiao-Qing Wang , Yong-Gui Zhou
DOI: 10.1016/J.EURPOLYMJ.2020.109832
关键词:
摘要: Abstract As a kind of material possessing thermal stability, biocompatibility and degradability, polysilylethers (PSEs) have potential applications. Different catalytic systems been developed for the synthesis PSEs. However, resulted PSEs similar structure, which is unfavorable adjusting its properties. We herein synthesized series novel with pendant Si H groups via cobalt-catalyzed selective dehydrocoupling polymerization. Various diols prochiral silanes are suitable this method. This could also be obtained Co-catalyzed one-pot two-step process. Furthermore, asymmetric polymerization was studied high-Mn PSE obtained. After cleavage by methyl magnesium iodide, chiral silane high yield moderate enantioselectivity.
sci-hub.st 参考文章(48)
Silicon-based polymer science : a comprehensive resource American Chemical Society. ,(1989) , 10.1021/BA-1990-0224
真一 伊津野, Polymeric chiral catalyst design and chiral polymer synthesis Wiley. ,(2011)
Takahiko Kawakita, Hyun-Shik Oh, Jeong-Yeol Moon, Yang Liu, Ichiro Imae, Yusuke Kawakami, Synthesis, characterization and thermal properties of phenylene-disiloxane polymers obtained from catalytic cross-dehydrocoupling polymerization of bis(dimethylsilyl)benzene isomers and water Polymer International. ,vol. 50, pp. 1346- 1351 ,(2001) , 10.1002/PI.784
Shouji Minegishi, Muneharu Ito, Atsushi Kameyama, Tadatomi Nishikubo, Synthesis of poly(silyl ether)s containing pendant chloromethyl groups by the polyaddition of bis(oxetane)s with dichlorosilanes Journal of Polymer Science Part A. ,vol. 38, pp. 2254- 2259 ,(2000) , 10.1002/(SICI)1099-0518(20000615)38:12<2254::AID-POLA140>3.0.CO;2-R
Motoi Oishi, Jeong-Yeol Moon, Wanida Janvikul, Yusuke Kawakami, Synthesis of poly(methylphenylsiloxane) rich in syndiotacticity by Rh‐catalysed stereoselective cross‐dehydrocoupling polymerization of optically active 1,3‐dimethyl‐1,3‐diphenyldisiloxane derivatives Polymer International. ,vol. 50, pp. 135- 143 ,(2001) , 10.1002/1097-0126(200101)50:1<135::AID-PI600>3.0.CO;2-6
Susan Adams Nye, Sandra A. Swint, Synthesis and properties of polyoxyarylenesiloxanes Journal of Polymer Science Part A. ,vol. 32, pp. 131- 138 ,(1994) , 10.1002/POLA.1994.080320115
Yuning Li, Yusuke Kawakami, Synthesis and Properties of Polymers Containing Silphenylene Moiety via Catalytic Cross-Dehydrocoupling Polymerization of 1,4-Bis(dimethylsilyl)benzene Macromolecules. ,vol. 32, pp. 8768- 8773 ,(1999) , 10.1021/MA991312T
Joseph M. Mabry, Matthew K. Runyon, William P. Weber, Poly(silyl ether)s by Ruthenium-Catalyzed Hydrosilylation Polymerization of Aliphatic ω-Dimethylsilyloxy Ketones and Copolymerization of Aliphatic α,ω-Diketones with α,ω-Dihydridooligodimethylsiloxanes Macromolecules. ,vol. 35, pp. 2207- 2211 ,(2002) , 10.1021/MA0115139
Ruzhi Zhang, James E. Mark, Allan R. Pinhas, Dehydrocoupling Polymerization of Bis-silanes and Disilanols to Poly(silphenylenesiloxane) As Catalyzed by Rhodium Complexes† Macromolecules. ,vol. 33, pp. 3508- 3510 ,(2000) , 10.1021/MA000054T
Munirathina Padmanaban, Masa-Aki Kakimoto, Yoshio Imai, Synthesis and characterization of new photosensitive poly (oxyaryleneoxydisilane)s from 1,2-bis (diethylamino) tetramethyldisilane and various bisphenols Journal of Polymer Science Part A. ,vol. 28, pp. 2997- 3005 ,(1990) , 10.1002/POLA.1990.080281109