公开(公告)号：US11053356B2

公开(公告)日：2021-07-06

申请号：US15914762

申请日：2018-03-07

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert H Grubbs ,  Tzu-Pin Lin ,  Alice Chang ,  Hsiang-Yun Chen ,  Christopher M Bates

IPC: C08G81/00 ,  C08G81/02 ,  C08F285/00 ,  C08F287/00 ,  C08G61/08 ,  C08F290/04 ,  C08F290/06 ,  C08F290/02 ,  C08F267/10 ,  B82Y40/00 ,  C08F293/00

Abstract: In an aspect, a method of synthesizing a graft copolymer comprises the steps of: copolymerizing a first macromonomer and a first reactive diluent; wherein said first macromonomer comprises a first backbone precursor directly or indirectly covalently linked to a first polymer side chain group; wherein said reactive diluent is provided in the presence of the first macromonomer at an amount selected so as to result in formation said graft copolymer having a first backbone incorporating said diluent and said first macromonomer in a first polymer block characterized by a preselected first graft density or a preselected first graft distribution of said first macromonomer. In some embodiments of this aspect, said preselected first graft density is any value selected from the range of 0.05 to 0.75. In some methods, the composition and amount of said diluent is selected to provide both a first preselected first graft density and a first preselected first graft distribution.

公开(公告)号：US10153513B2

公开(公告)日：2018-12-11

申请号：US15065291

申请日：2016-03-09

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert H. Grubbs ,  Christopher M. Bates ,  Alice Chang ,  Brendon McNicholas ,  Simon C. Jones

IPC: C08G81/00 ,  H01M10/0565 ,  C08G61/02 ,  H01M10/0525 ,  H01M14/00 ,  H01M8/1018

Abstract: Provided herein is a class of copolymers, including triblock brush copolymers having specific block configurations, for example, ABC triblock brush copolymers and ABA triblock brush copolymers. In an embodiment, for example, copolymers of the invention incorporate various polymer side chain groups which contribute beneficial physical, chemical, or electronic properties such as increased mechanical or elastic strength, improved ionic or electric conductivity. In some embodiments, the provided copolymers exhibit advantageous steric properties allowing for rapid self-assembly into a variety of morphologies that are substantially different than non-brush, block copolymers.

公开(公告)号：US10608280B2

公开(公告)日：2020-03-31

申请号：US15065317

申请日：2016-03-09

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert H. Grubbs ,  Christopher M. Bates ,  Alice Chang ,  Brendon McNicholas ,  Simon C. Jones

IPC: H01M10/0565 ,  C08G81/00 ,  C08L87/00 ,  C08G61/08 ,  C08L65/00 ,  C08G61/02 ,  H01M10/0525 ,  H01M14/00 ,  H01M8/1018

Abstract: Provided herein are copolymer electrolytes and electrocatalyst platforms, including brush block copolymers, triblock brush copolymers and pentablock brush copolymers. The copolymers described have beneficial chemical, physical and electrical properties including high ionic conductivity and mechanical strength. In embodiments, for example, the provided copolymer electrolytes and electrocatalyst platforms are doped with lithium salts or mixed with ionic liquids to form ion gels. In some embodiments, the copolymers provided herein self-assemble into physically cross-linked polymer networks with additional useful properties. The provided copolymers have low dispersity in the polymer side chains and do not require post-polymerization modifications.