Detail of "355-93-1"

Reference

Fluoralky methacrylate polymerization kinetics with methyl methacrylate at initial stages

All Rights Reserved. Fluoralky methacrylate polymerization kinetics with methyl methacrylate at initial stages. Mel'nichenko, B. I.; Man'ko, K. I.; Bovkunenko, O. P. (Donetsk. Nats. Univ., Donetsk, Ukraine). Ukrainskii Khimicheskii Zhurnal (Russian Edition), 72(3-4), 118-122 (Ukrainian) 2006 Institut Obshchei i Neorganicheskoi Khimii im. V. I. Vernadskogo NAN Ukrainy. CODEN: UKZHAU. ISSN: 0041-6045. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) The kinetics of 1,1,3-trihydroperfluoropropyl methacrylate and 1,1,5-trihydroperfluoroamyl methacrylate polymn. with Me methacrylate has been studied on the early reaction stages. 355-93-1 and 45102-52-1 which are cas registry numbers of chemicals are mentioned. The relationship has been established between copolymn. initiation rate and initial monomer mixt. compn.. The correlation of propagation and termination rate consts. for these systems is detd. in the 328-348 K temp. range. .

Synthesis of poly(vinylimidazole-co-fluoropentyl methacrylate) and oxygen-binding properties of its complex with cobalt porphyrin

Synthesis of poly(vinylimidazole-co-fluoropentyl methacrylate) and oxygen-binding properties of its complex with cobalt porphyrin. Shentu, Baoqing; Weng, Zhixue; Nishide, Hiroyuki (Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, Peop. Rep. China). Gaofenzi Xuebao, (5), 652-655 (Chinese) 2002 Kexue Chubanshe. CODEN: GAXUE9. ISSN: 1000-3304. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Synthesis and characteristics of poly(fluoropentyl methacrylate-co-vinylimidazole) (FIm), and oxygen-binding properties of its complex with meso-a, a, a, a-tetrakis (o-pivalamidophenyl) porphyrinato cobalt (II) (CoP) were studied. FIm was prepd. by radical copolymn. of octafluoropentyl methacrylate with 1-vinylimdazole using azobis(isobutyronitrile) as the initiator. The vinylimidazole content and mol. wt. of the FIm copolymer were detd. to be 25 mol% and 5.0 x 104 by elemental anal. and GPC, resp. FIm and CoP in soln. were mixed to complex the imidazolyl residue of the copolymer with the fifth coordination site of CoP under nitrogen atm. to yield both an active and homogenous dispersed CoP for oxygen-binding. Oxygen-binding to the CoP-FIm complex was measured spectroscopically with a UV spectrophotometer. The CoP-Flm complex displayed a reversible change in the visible absorption spectrum from the deoxy form to the oxy or oxygen-binding one with an isosbestic point, in response to the partial oxygen pressure of the atm. The oxygen-binding equil. curves obeyed a Langmuir isotherm,to give the oxygen-binding affinity p50 (oxygen partial pressure at which half of the CoP binds with oxygen). Solvent has great effect on the oxygen-binding properties of the complex. The oxygen-binding affinity of the CoP-FIm complex in THF was larger than that in N,N-DMF soln. It is assumed that a N,N-DMF mol. weakly coordinated to the sixth site (oxygen-binding site) of CoP to reduce the oxygen-binding affinity. On the other hand, the oxygen-binding site of the CoP complex could be maintained vacant in THF before the oxygen-binding. The binding and dissocn. rate consts.In this experiment, several chemicals are used like 488721-73-9 and 355-93-1 of oxygen to and from the CoP(kon and koff, resp.) for the CoP-FIm soln. were large, which indicates a very rapid and reversible oxygen-binding by CoP. .