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Title: Accessing siloxane functionalized polynorbornenes via vinyl-addition polymerization for CO 2 separation membranes

Here, the vinyl addition polymerization of norbornylbased monomers bearing polar functional groups is often problematic, leading to low molecular weight polymers in poor yield. Herein, we provide proof-of-principle evidence that addition-type homopolymers of siloxane substituted norbornyl-based monomers may be readily synthesized using the catalyst trans-[Ni(C 6F 5) 2(SbPh 3) 2]. Polymerizations using this catalyst reached moderate to high conversion in just 5 min of polymerization and produced siloxanesubstituted polymers with molecular weights exceeding 100 kg/mol. These polymers showed excellent thermal stability (T d ≥ 362 °C) and were cast into membranes that displayed high CO 2 permeability and enhanced CO 2/N 2 selectivity as compared to related materials.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [3] ;  [3] ;  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
ACS Macro Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 7; Journal ID: ISSN 2161-1653
Publisher:
American Chemical Society
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1279443

Mahurin, Shannon Mark, Sokolov, Alexei P., Saito, Tomonori, Long, Brian K., Gmernicki, Kevin R., Hong, Eunice, and Maroon, Christopher R.. Accessing siloxane functionalized polynorbornenes via vinyl-addition polymerization for CO2 separation membranes. United States: N. p., Web. doi:10.1021/acsmacrolett.6b00435.
Mahurin, Shannon Mark, Sokolov, Alexei P., Saito, Tomonori, Long, Brian K., Gmernicki, Kevin R., Hong, Eunice, & Maroon, Christopher R.. Accessing siloxane functionalized polynorbornenes via vinyl-addition polymerization for CO2 separation membranes. United States. doi:10.1021/acsmacrolett.6b00435.
Mahurin, Shannon Mark, Sokolov, Alexei P., Saito, Tomonori, Long, Brian K., Gmernicki, Kevin R., Hong, Eunice, and Maroon, Christopher R.. 2016. "Accessing siloxane functionalized polynorbornenes via vinyl-addition polymerization for CO2 separation membranes". United States. doi:10.1021/acsmacrolett.6b00435. https://www.osti.gov/servlets/purl/1279443.
@article{osti_1279443,
title = {Accessing siloxane functionalized polynorbornenes via vinyl-addition polymerization for CO2 separation membranes},
author = {Mahurin, Shannon Mark and Sokolov, Alexei P. and Saito, Tomonori and Long, Brian K. and Gmernicki, Kevin R. and Hong, Eunice and Maroon, Christopher R.},
abstractNote = {Here, the vinyl addition polymerization of norbornylbased monomers bearing polar functional groups is often problematic, leading to low molecular weight polymers in poor yield. Herein, we provide proof-of-principle evidence that addition-type homopolymers of siloxane substituted norbornyl-based monomers may be readily synthesized using the catalyst trans-[Ni(C6F5)2(SbPh3)2]. Polymerizations using this catalyst reached moderate to high conversion in just 5 min of polymerization and produced siloxanesubstituted polymers with molecular weights exceeding 100 kg/mol. These polymers showed excellent thermal stability (Td ≥ 362 °C) and were cast into membranes that displayed high CO2 permeability and enhanced CO2/N2 selectivity as compared to related materials.},
doi = {10.1021/acsmacrolett.6b00435},
journal = {ACS Macro Letters},
number = 7,
volume = 5,
place = {United States},
year = {2016},
month = {7}
}