Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Weixian Xi"'
Publikováno v:
ACS macro letters. 1(7)
A new group of nitrogen-centered nucleophilic catalysts for the thiol-Michael addition “click” reactions is examined. These nucleophiles showed efficient catalytic activities as compared with traditional base catalysts, such as triethylamine, and
Publikováno v:
Polymer. 156:162-168
Here, a process is introduced for forming dual stage thiol-Michael/acrylate hybrid networks photocured by two different wavelengths, demonstrating its use in nanoimprint lithography (NIL) and shape memory materials. Initiated with a visible light sen
Autor:
Christopher N. Bowman, Brady T. Worrell, Trevor M. Goldman, Sudheendran Mavila, Chen Wang, Weixian Xi
Publikováno v:
ACS Macro Letters. 7:1312-1316
Polymers that possess dynamic covalent bonds activated at ambient conditions are ideal platforms for smart, responsive materials. Herein, a class of dynamic covalent polymerizations is developed based on the thiol-thioester exchange, that is, transth
Autor:
Weixian Xi, Xinpeng Zhang, Guangzhe Gao, Christopher N. Bowman, Xiance Wang, Jeffrey W. Stansbury
Publikováno v:
ACS Macro Letters. 7:852-857
In this contribution, three o-nitrobenzyl-based photobase systems were synthesized and evaluated for visible light initiated thiol-Michael addition polymerizations. With a modified structure, the (3,4-methylenedioxy-6-nitrophenyl)-propyloxycarbonyl (
Publikováno v:
ACS Macro Letters. 5:229-233
An efficient visible-light-sensitive photobase generator for thiol-Michael addition reactions was synthesized and evaluated. This highly reactive catalyst was designed by protecting a strong base (tetramethyl guanidine, TMG) with a visible-light-resp
Autor:
J.W. Stansbury, Maciej Podgórski, Chen Wang, Parag K. Shah, Christopher N. Bowman, Weixian Xi, Xinpeng Zhang
Publikováno v:
Macromolecules. 48:8461-8470
We report a dispersion polymerization method based on thiol–Michael addition reactions for the preparation of cross-linked, narrow dispersity microparticles with well-defined, tunable physicochemical properties. Polymerization between pentaerythrit
Autor:
Haitao Yang, Zhengyue Wang, Weixian Xi, Jianping Zhou, Jiang Zhong, Yongmin Xu, Huixuan Peng, Hongbo Liang
Publikováno v:
Progress in Organic Coatings. 143:105636
Self-healing is a very hot topic in hydrogel community since its close relationship with broad applications such as injectable hydrogels for cell delivery, bioinks for 3D printing, and drug delivery carriers. Considerable efforts have been devoted to
Autor:
Wentao Wang, Weixian Xi, Chen Wang, Haiyan Peng, Devatha P. Nair, Tao Gong, Robert R. McLeod, Xiaolin Xie, Christopher N. Bowman, Benjamin A. Kowalski
Publikováno v:
Chemistry of Materials. 26:6819-6826
Freestanding substrates with high refractive index modulation, good oxygen resistance, and low volume shrinkage are critical in photolithography for the purpose of high density data storage, image patterning and anticounterfeiting. Herein, we demonst
Autor:
J.W. Stansbury, Alan Aguirre-Soto, Haiyan Peng, Christopher N. Bowman, Weixian Xi, Christopher J. Kloxin
Publikováno v:
Macromolecules
Photochemical processes enable spatial and temporal control of reactions, which can be implemented as an accurate external control approach in both polymer synthesis and materials applications. "Click" reactions have also been employed as efficient t
Autor:
Chen Wang, Neil B. Cramer, Michael Cole, Xiaolin Xie, Haiyan Peng, Tao Gong, Weixian Xi, Benjamin A. Kowalski, Robert R. McLeod, Devatha P. Nair, Christopher N. Bowman
Publikováno v:
Macromolecules. 47:2306-2315
Orthogonal, sequential “click” reactions were implemented to yield novel polymeric substrates with the ability to record holographic data. The base-catalyzed thiol–acrylate Michael “click” reaction was implemented to yield a writable, stage