19 research outputs found
Polymerization of methyl acrylate using a heterocyclic ylide as an initiator and degradative chain transfer agent
No full text13-17<span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">The free radical
polymerization of methylacrylatc has been investigated at 80± 1°C for 60 min in
1,4-dioxan using p-bromophenacyl
dimethyl sulphonium ylide as initiator and degradative chain transfer agent up
to 23% conversion. </span
Copolymerization of 4-vinylpyridine and styrene initiated by β-picolinium-p-chlorophenacylide
Get PDF705-706The radical copolymerization of styrene and 4-vinylpyridine, initiated by β-picolinium-p-chlorophenacylide (β-PCPY) in dimethyormamide (DMF) under nitrogen blanket at 60°C for 2 hr, has been studied dilatometrically. The various kinetic parameters such as rate of polymerization(RP), order of reaction (s) in [monomers]and [initiator] have been evaluated. he energy of activation(E) and k/kt values for the present system have been evaluated as 16.5 kJ mol-1 and 5.0 x 10-2 dm-3 mol-1 s-1, respectively. The reactivity ratios have been calculated as r1(4-vinylpyridine) = 0.80 and r2(styrene) = 0.90
Kinetics and mechanism of polymerization of methyl methacrylate initiated by stibonium ylide
No full text
Steaming and Toasting Reduce the Nutrimental Quality, Total Phenols and Antioxidant Capacity of Fresh Kabuli Chickpea (Cicer arietinum L.)
No full textOptimization of the malting process for nutritional improvement of finger millet and amaranth flours in the infant weaning food industry
No full text
Purpura fulminans with Lemierre’s syndrome caused by Gemella bergeri and Eikenella corrodens: a case report
No full text
