Premium
Induced Microphase Separation in Hybrid Composite Polymer Electrolytes Based on Poly(acrylonitrile‐ r ‐butadienes) and Ionic Liquids
Author(s) -
Wirey Michael,
Hunt Marcus,
Blensdorf Tyler,
Stein Barry D.,
WernerZwanziger Ulrike,
Hanson Margaret A.,
Mahmoud Waleed E.,
AlGhamdi Ahmed A.,
Carini John,
Bronstein Lyudmila M.
Publication year - 2016
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201500530
Subject(s) - trifluoromethanesulfonate , acrylonitrile , ionic liquid , ionic conductivity , substituent , electrolyte , polymer chemistry , materials science , phase (matter) , polymer , composite number , conductivity , ionic bonding , chemical engineering , copolymer , chemistry , ion , organic chemistry , composite material , electrode , engineering , catalysis
Novel hybrid, composite polymer electrolytes (HCPEs) based on poly(acrylonitrile‐ r ‐butadiene) (PAN‐ r ‐PB), CN‐modified silica nanoparticles (CN‐MSNs), Li triflate, and ionic liquids (ILs) are synthesized. Using a combination of methods, it is demonstrated that these materials segregate into PAN‐rich and PB‐rich phases, the behavior of which changes depending on the IL type. The incorporation of ILs containing hexyl and octyl substituents at the imidazolium rings leads to a higher mobility of the PB‐rich phase and a decrease of the density of the neighboring PAN‐rich phase, allowing an improvement of the Li ion conductivity. However, with an increase of the substituent length from decyl to dodecyl, ordering of the hydrophobic tails in the PB‐rich phase leads to both stiffening of the latter and corresponding ordering of the ionic pairs of ILs, resulting in a decreased conductivity. The results of this work are broadly applicable for controlling the structure and properties of polymeric materials exhibiting microphase segregation.