A CB[5] analogue based supramolecular polymer with AIE behaviors

2018 ◽  
Vol 42 (11) ◽  
pp. 8320-8324 ◽  
Author(s):  
Yufan Wu ◽  
Haojie Hua ◽  
Qiaochun Wang

An emissive supramolecular polymer was constructed by the self-assembly between a TPE quaternary ammonium salt and a cucurbit[5]uril analogue.

2013 ◽  
Vol 333-335 ◽  
pp. 1824-1827
Author(s):  
Ji Gang Wang ◽  
Wen Xiu Zhao ◽  
Guang Zhi Han ◽  
Qing Wang Liu ◽  
Zhen Zhong Fan

An acid self-diverting agent compound by betaine type surfactant and quaternary ammonium salt type surfactant was synthesized and evaluated. Found that when the pH value was higher than 1, acid viscosity rose rapidly, and the pH value up to 3, acid viscosity reached its maximum value (300mPa s), and can effectively made the acid diverse.When the pH value was 6, the system completely gelouted, easy to flowback; When added the self-diverting additives, acid system had better temperature resistance; With the elevated of concentration of the self-diverting agent, the apparent viscosity of acid increased, when the concentration of the self-diverting agent was more than 5%, the acid apparent viscosity increased little, gradually stabilized, but all above 300mPas, meet the industry standard requirements.


2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.


2013 ◽  
Vol 50 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Yong-Qiang Sun ◽  
Wen-Jing Li ◽  
Wan-Xu Wang ◽  
Qiu-Xiao Li ◽  
Wieslaw Hreczuch ◽  
...  

1997 ◽  
Vol 62 (6) ◽  
pp. 849-854 ◽  
Author(s):  
Vladislav Holba ◽  
Renata Košická

The paper deals with instability of solutions of quaternary ammonium permanganates, QMnO4 (Q = tetraethyl-, tetra-1-propyl-, tetra-1-butyl-, tetra-1-pentyl-, tetra-1-octyl-, and cetyltrimethylammonium), in dichloromethane and presents the rate constants and activation parameters of the reduction of permanganate. Attention was paid to the properties of colloidal Mn(IV) intermediate. The stability of the solutions depends markedly on the quaternary ammonium salt used.


Fuel ◽  
2021 ◽  
Vol 287 ◽  
pp. 119434
Author(s):  
Jun Chen ◽  
Hongliang Li ◽  
Chunfu Liu ◽  
Lingyun Liu ◽  
Yu Sun ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25667-25676 ◽  
Author(s):  
Jingyu Wang ◽  
Minghao Sui ◽  
Zhanfang Ma ◽  
Hongwei Li ◽  
Bojie Yuan

Polymer quaternary ammonium salt–capped silver nanoparticles (PQAS–AgNPs) were synthesized, and they exhibited significant antibacterial capacity against Bacillus subtilis.


2013 ◽  
Vol 34 (1) ◽  
pp. 106-110 ◽  
Author(s):  
Xiongjun Wu ◽  
Lin Zhao ◽  
Xiaojun Wang ◽  
Jinjie Wang ◽  
Yuli Zhang

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