Asymmetric Reaction ofα-Sulfenyl Carbanions

Author(s):  
Shuichi Nakamura ◽  
Takeshi Toru
Keyword(s):  
2014 ◽  
Author(s):  
Philip A. Horvath ◽  
Amit K. Sinha

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Dawei Zhang ◽  
Lihong Zhang ◽  
Bingzhe Wang ◽  
Guangzhe Piao

Stable lyotropic chiral nematic liquid crystals (N*-LCs) of cellulose nanocrystals (CNs) were prepared via hydrolysis using sulfuric acid. The lyotropic N*-LCs were used as an asymmetric reaction field to synthesize polyaniline (PANI) onto CNs by in situ polymerization. As a primary step, we examined the mesophase transition of the N*-LCs of CNs suspension before and after in situ polymerization of aniline (ANI) by polarizing optical microscopy. The structure of nanocomposites of PANI/CNs was investigated at a microscopic level using Fourier transform infrared spectroscopy and X-ray diffraction. Influence of the CNs-to-ANI ratio on the morphology of the nanocomposites was also investigated at macroscopic level by scanning electron and transmission electron microscopies. It is found that the weight ratio of CNs to aniline in the suspension significantly influenced the size of the PANI particles and interaction between CNs and PANI. Moreover, electrical properties of the obtained PANI/CNs films were studied using standard four-probe technique. It is expected that the lyotropic N*-LCs of CNs might be available for an asymmetric reaction field to produce novel composites of conjugated materials.


1989 ◽  
Vol 188 (1-2) ◽  
pp. 129-140 ◽  
Author(s):  
Vladimir A. Pichko ◽  
Boris Ya. Simkin ◽  
Vladimir I. Minkin

ChemInform ◽  
2006 ◽  
Vol 37 (20) ◽  
Author(s):  
Shinichi Itsuno ◽  
Naoki Haraguchi ◽  
Miyuki Takahashi

1996 ◽  
Vol 37 (15) ◽  
pp. 2585-2588 ◽  
Author(s):  
Akihiko Ito ◽  
Katsuaki Konishi ◽  
Takuzo Aida
Keyword(s):  

2017 ◽  
Vol 9 (1) ◽  
pp. 2-19 ◽  
Author(s):  
Taufeeq Ajaz ◽  
Md Zulquar Nain ◽  
Bandi Kamaiah ◽  
Naresh Kumar Sharma

Purpose This paper aims to examine the dynamic interactions between monetary and financial variables in the Indian context. Design/methodology/approach In this paper, the authors have applied a recently developed asymmetric autoregressive distributed lag (ARDL) model by Shin et al. (2014), for detecting nonlinearities focusing on the long-run and short-run asymmetries among economic variables. Findings The results point toward the presence of asymmetric reaction of stock prices to changes in interest rate and exchange rate in full sample, as well as in pre-crisis. However, no asymmetry was found in the post-crisis period. The results further suggest that tight monetary policies appear to retard the stock prices, more than easy monetary policies that stimulate them. Practical implications The findings of the study can be helpful in understanding the policy transmission mechanism through asset price channel. Originality/value To the best of the authors’ knowledge, this is the first study that examines the interactions between monetary and financial variables in the Indian context in an asymmetric framework. The findings of this study are quite interesting and are different from several existing studies in the literature.


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