“Living” radical polymerization of methyl methacrylate with diethyl 2,3-dicyano-2,3-diphenylsuccinate as a thermal iniferter
✍ Scribed by Shu-Hui Qin; Kun-Yuan Qiu; Graham Swift; David G. Westmoreland; Shuguang Wu
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 157 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0887-624X
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✦ Synopsis
The bulk polymerization of methyl methacrylate (MMA) initiated with diethyl 2,3-dicyano-2,3-diphenylsuccinate (DCDPS) was studied. This polymerization showed some "living" characteristics; that is, both the yield and the molecular weight of the resulting polymers increased with reaction time, and the resultant polymer can be extended by adding MMA. The molecular weight distribution of PMMA obtained at high conversion is fairly narrow (M w /M n ϭ 1.24Ϸ1.34). It was confirmed that DCDPS can serve as a thermal iniferter for MMA polymerization by a "living" radical mechanism. Furthermore, the PMMA obtained can act as a macroinitiator for radical polymerization of styrene (St) to give a block copolymer.
📜 SIMILAR VOLUMES
Living radical polymerization of methyl methacrylate (MMA) through the use of benzyl diethyl dithiocarbamate (BDC) was studied. The aim was to investigate the role of the concentration, BDC-to-MMA mol ratio, and reaction time upon the molecular weight, polydispersity, and conversion of the product.
## Abstract The free‐radical copolymerization of methyl acrylate with styrene initiated by triphenylstibonium 1,2,3,4‐tetraphenylcyclopentadienylide under nitrogen blanket at (60 ± 0.1)°C in 1,4,dioxane for 2 h has been carried out. The kinetic expression is __R~p~__ ∝ [I]^0.14^ [MA]^0.70^ [Sty]^0.
A zerovalent nickel complex, Ni(PPh 3 ) 4 , induced living radical polymerization of methyl methacrylate (MMA) in conjunction with an organic bromide as an initiator [R-Br: CCl 3 Br, (CH 3 ) 2 C(CO 2 Et)Br, (CH 3 ) 2 C(COPh)Br] in the presence of Al(Oi-Pr) 3 additive. The molecular weight distributi
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