TY  - JOUR
A1  - Dani, Alessandro
A1  - Tauber, Karoline
A1  - Zhang, Weiyi
A1  - Schlaad, Helmut
A1  - Yuan, Jiayin
T1  - Stable Covalently Photo-Crosslinked Poly(Ionic Liquid) Membrane with Gradient Pore Size
JF  - Macromolecular rapid communications
N2  - Porous polyelectrolyte membranes stable in a highly ionic environment are obtained by covalent crosslinking of an imidazolium-based poly(ionic liquid). The crosslinking reaction involves the UV light-induced thiol-ene (click) chemistry, and the phase separation, occurring during the crosslinking step, generates a fully interconnected porous structure in the membrane. The porosity is on the order of the micrometer scale and the membrane shows a gradient of pore size across the membrane cross-section. The membrane can separate polystyrene latex particles of different size and undergoes actuation in contact with acetone due to the asymmetric porous structure.
KW  - membrane
KW  - photo-crosslinked
KW  - poly(ionic liquid)
KW  - porous structure
Y1  - 2017
U6  - https://doi.org/10.1002/marc.201700167
SN  - 1022-1336
SN  - 1521-3927
VL  - 38
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Sung, Jian-Ke
A1  - Kochovski, Zdravko
A1  - Zhang, Wei-Yi
A1  - Kirmse, Holm
A1  - Lu, Yan
A1  - Antonietti, Markus
A1  - Yuan, Jiayin
T1  - General Synthetic Route toward Highly Dispersed Metal Clusters Enabled by Poly(ionic liquid)s
JF  - Journal of the American Chemical Society
N2  - The ability to synthesize a broad spectrum of metal clusters (MCs) with their size controllable on a subnanometer scale presents an enticing prospect for exploring nanosize-dependent properties. Here we report an innovative design of a capping agent from a polytriazolium poly(ionic liquid) (PIL) in a vesicular form in solution that allows for crafting a variety of MCs including transition metals, noble metals, and their bimetallic alloy with precisely controlled sizes (similar to 1 nm) and record-high catalytic performance. The ultrastrong stabilization power is a result of an unusual synergy between the conventional binding sites in the heterocyclic cations in PIL and an in situ generated polycarbene structure induced simultaneously to the reduction reaction.
Y1  - 2017
U6  - https://doi.org/10.1021/jacs.7b03357
SN  - 0002-7863
VL  - 139
SP  - 8971
EP  - 8976
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - GEN
A1  - Dani, Alessandro
A1  - Taeuber, Karoline
A1  - Zhang, Weiyi
A1  - Schlaad, Helmut
A1  - Yuan, Jiayin
T1  - Stable covalently photo-cross-linked porous poly(ionic liquid) membrane with gradient pore size
T2  - Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS
N2  - Porous polyelectrolyte membranes stable in a highly ionic environment are obtained by covalent crosslinking of an imidazolium-based poly(ionic liquid). The crosslinking reaction involves the UV light-induced thiol-ene (click) chemistry, and the phase separation, occurring during the crosslinking step, generates a fully interconnected porous structure in the membrane. The porosity is on the order of the micrometer scale and the membrane shows a gradient of pore size across the membrane cross-section. The membrane can separate polystyrene latex particles of different size and undergoes actuation in contact with acetone due to the asymmetric porous structure.
Y1  - 2018
SN  - 0065-7727
VL  - 256
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - THES
A1  - Zhang, Weiyi
T1  - Functional Poly(ionic liquid) Materials based on Poly(1,2,4-triazolium)s
Y1  - 2017
ER  - 
TY  - JOUR
A1  - Zhang, Weiyi
A1  - Willa, Christoph
A1  - Sun, Jian-Ke
A1  - Guterman, Ryan
A1  - Taubert, Andreas
A1  - Yuan, Jiayin
T1  - Polytriazolium poly(ionic liquid) bearing triiodide anions: Synthesis, basic properties and electrochemical behaviors
JF  - Polymer : the international journal for the science and technology of polymers
N2  - 4-Methyl-1-vinyl-1,2,4-triazolium triiodide ionic liquid and its polymer poly(4-methyl-1-vinyl-1,2,4-triazolium) triiodide were prepared for the first time from their iodide precursors via the reaction of iodide (I-) with elemental iodine (I-2). The change from iodide to triiodide (I-3(-)) was found to introduce particular variations in the physical properties of these two compounds, including lower melting point/glass transition temperature and altered solubility. The compounds were characterized by single-crystal X-ray diffraction, elemental analysis, and their electrochemical properties examined in solution and in the solid-state. Compared with their iodide analogues, the triiodide salts exhibited lower electrical impedance and higher current in the cyclic voltammetry. We found that poly(4-methyl-1,2,4-triazolium triiodide) was proven to be a promising solid polymer electrolyte candidate. (C) 2017 Elsevier Ltd. All rights reserved.
KW  - Poly(ionic liquid)
KW  - Solid polymer electrolyte
KW  - Grotthuss mechanism
KW  - Triiodide "network"
Y1  - 2017
U6  - https://doi.org/10.1016/j.polymer.2017.07.059
SN  - 0032-3861
SN  - 1873-2291
VL  - 124
SP  - 246
EP  - 251
PB  - Elsevier
CY  - Oxford
ER  -