公开(公告)号：US10711101B2

公开(公告)日：2020-07-14

申请号：US15525731

申请日：2015-11-11

Applicant: CORNELL UNIVERSITY

Inventor： Geoffrey W. Coates ,  Matthew Ian Childers

IPC: C08G65/12 ,  C08G65/26 ,  C07F11/00

Abstract: Provided are compositions comprising isotactic polyethers. Methods of making isotactic polyethers, and uses thereof are also disclosed. Also provided are bimetallic complexes that can be used as catalyst. Methods of making isotactic polyethers and bimetallic complexes and uses thereof are also disclosed. For example, a racemic bimetallic (salalen)CrCl polymerization catalyst was prepared and used alkyl diol, PO-oligomer triols, and aPPO and PCL diols as CSAs in order to produce α,ω-hydroxy telechelic iPPO. These telechelic polymers have controlled molecular weights and are semicrystalline. Amorphous α,ω-hydroxy telechelic PPO can also be produced by increasing the reaction temperature in conjunction with the use of CSAs.