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Polynorbornene-based polycations

Patent ·
OSTI ID:2222008
; ;

A statistical, cationic-functionalized norbornene copolymer is formed by a process including performing a vinyl addition polymerization in the presence of a metal catalyst of a first norbornene monomer substituted with a first alkyl group and at least a second norbornene monomer substituted with a second alkyl group, to form an intermediate norbornene copolymer. The second alkyl group includes a substituent which undergoes a substitution reaction with a precursor of a cationic group. The process further includes adding the precursor for the cationic group to the intermediate norbornene copolymer to form the cationic functionalized norbornene copolymer. The cationic group has a volume of 0.25 cm3/mol or greater (for example, a phosphonium group or an imidazolium group).

Research Organization:
Carnegie Mellon Univ., Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0019445
Assignee:
Carnegie Mellon University (Pittsburgh, PA)
Patent Number(s):
11,708,447
Application Number:
17/243,877
OSTI ID:
2222008
Country of Publication:
United States
Language:
English

References (10)

Anionic multiblock copolymer membrane based on vinyl addition polymerization of norbornenes: Applications in anion-exchange membrane fuel cells journal January 2019
Synthesis and Rheological Properties of Poly(5-n-hexylnorbornene) journal January 2006
Syntheses and Structures of Bulky Monophosphine-Ligated Methylpalladium Complexes:  Application to Homo- and Copolymerization of Norbornene and/or Methoxycarbonylnorbornene journal September 2006
Extremely Strong, Uncharged Auxiliary Bases; Monomeric and Polymer-Supported Polyaminophosphazenes (P2-P5) journal July 1996
Poly(norbornene) anion conductive membranes: homopolymer, block copolymer and random copolymer properties and performance journal January 2020
Living Vinyl Addition Polymerization of Substituted Norbornenes by a t -Bu 3 P-Ligated Methylpalladium Complex journal February 2015
Versatile Route to Functionalized Vinylic Addition Polynorbornenes journal September 2010
Composite Poly(norbornene) Anion Conducting Membranes for Achieving Durability, Water Management and High Power (3.4 W/cm 2 ) in Hydrogen/Oxygen Alkaline Fuel Cells journal January 2019
Exploring the Effects of Bulky Cations Tethered to Semicrystalline Polymers: The Case of Tetraaminophosphoniums with Ring-Opened Polynorbornenes journal September 2020
Highly Conductive Anion-Exchange Membranes Based on Cross-Linked Poly(norbornene): Vinyl Addition Polymerization journal March 2019

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