نتایج جستجو برای: atom transfer radicalpolymerization

تعداد نتایج: 336148  

Amir Reza Fareghi Nasim Movagharnezhad Peyman Najafi Moghadam Sedigheh Ehsanimehr

In current study,a hydrogel based on biocompatible polymerwas prepared. The functionalization of polyvinyl alcohol (PVA)with epichlorohydrin(ECH) to produce epichlorohydrin-g-polyvinyl alcohol (PVA/ECH) as a suitable macroinitiator for atom transfer radical polymerization (ATRP) reaction was investigated.ThenN-vinyl pyrrolidone (NVP) waspolymerized on the surface of macroinitiatorin presence of...

2005
Xiong-Jun Liu Hui Jing Xin Liu Ming-Sheng Zhan

Two-component entangled atom laser is obtained via quantum state transfer technique from lights to matter waves in a five-level M -type system. The considered atom-atom collisions can yield an effective Kerr susceptibility for this system and lead to the selfand crossphase modulation between the two output atom lasers. This effect results in generation of entangled states of output atom lasers....

Journal: :Journal of the American Chemical Society 2013
Junying Chen Yong-Min Lee Katherine M Davis Xiujuan Wu Mi Sook Seo Kyung-Bin Cho Heejung Yoon Young Jun Park Shunichi Fukuzumi Yulia N Pushkar Wonwoo Nam

Redox-inactive metal ions play pivotal roles in regulating the reactivities of high-valent metal-oxo species in a variety of enzymatic and chemical reactions. A mononuclear non-heme Mn(IV)-oxo complex bearing a pentadentate N5 ligand has been synthesized and used in the synthesis of a Mn(IV)-oxo complex binding scandium ions. The Mn(IV)-oxo complexes were characterized with various spectroscopi...

Journal: :Journal of the American Chemical Society 2014
Anna Lewandowska-Andralojc David C Grills Jie Zhang R Morris Bullock Akira Miyazawa Yuji Kawanishi Etsuko Fujita

We have investigated the kinetics of novel carbon-to-metal hydrogen atom transfer reactions, in which homolytic cleavage of a C-H bond is accomplished by a single metal-centered radical. Time-resolved IR spectroscopic measurements revealed efficient hydrogen atom transfer from xanthene, 9,10-dihydroanthracene, and 1,4-cyclohexadiene to Cp(CO)2Os(•) and (η(5)-(i)Pr4C5H)(CO)2Os(•) radicals, forme...

Journal: :Journal of the American Society for Mass Spectrometry 2009

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