A study of the relative reactivity of maleic anhydride and some maleimides in free radical copolymerization and terpolymerization

1990 ◽  
Vol 28 (4) ◽  
pp. 795-801 ◽  
Author(s):  
Zbigniew Florjańczyk * ◽  
Włodzimierz Krawiec ◽  
Katarzyna Such
Keyword(s):  
Free Radical ◽  
Maleic Anhydride ◽  
Radical Copolymerization ◽  
Relative Reactivity ◽  
Free Radical Copolymerization

scholarly journals DFT Modeling of the Alternating Radical Copolymerization and Alder-Ene Reaction between Maleic Anhydride and Olefins

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 744 ◽  
Author(s):  
Ilya Nifant’ev ◽  
Alexander Vinogradov ◽  
Alexey Vinogradov ◽  
Pavel Ivchenko
Keyword(s):  
Free Radical ◽  
Maleic Anhydride ◽  
Density Functional ◽  
Radical Copolymerization ◽  
Controlled Polymerization ◽  
Free Radical Copolymerization ◽  
Thermally Induced ◽  
Ene Reaction ◽  
Dft Modeling ◽  
Acrylate Monomers

The free radical copolymerization of electron-acceptor and electron-donor vinyl monomers represents a particular case of sequence-controlled polymerization. The reactions of maleic anhydride (MA) or related compounds (acceptor comonomers) with α-olefins (donor comonomers) result in the formation of the alternating copolymers that have clear prospects for petrochemical and biomedical applications. However, in contrast to the well-established polymerization of acrylate monomers, these processes have not been studied theoretically using the density functional theory (DFT) calculations. In our research, we performed a comprehensive theoretical analysis of the free radical copolymerization of MA and closely related maleimide with different structural types of olefins at mpw1pw91/6-311g(d) level of the DFT. The results of our calculations clearly indicated the preference of the alternating reaction mode for the copolymerization of MA with α-olefins, isobutylene and prospective unsaturated monomers, as well as methylenealkanes. The DFT modeling of the thermally induced Alder-ene reaction between MA and olefins allowed to exclude this reaction from the scope of possible side processes at moderately high temperatures. Comparative analysis of MA and N-methylmaleimide (MMI) reactivity shown that the use of MMI instead of MA makes no sense in terms of the reaction rate and selectivity.

scholarly journals Solvent Effects in Free Radical Copolymerization

1971 ◽  
Vol 49 (20) ◽  
pp. 3249-3251 ◽  
Author(s):  
A. M. Chatterjee ◽  
C. M. Burns
Keyword(s):  
Free Radical ◽  
Aqueous Solutions ◽  
Solvent Effects ◽  
Reaction Medium ◽  
Radical Copolymerization ◽  
Relative Reactivity ◽  
Vinyl Pyrrolidone ◽  
Free Radical Copolymerization

Acrylamide and N-vinyl pyrrolidone were copolymerized at 60° in binary aqueous solutions containing 0, 5, 67, and 80% glycerol by weight. A marked increase in the reactivity of acrylamide relative to that of N-vinyl pyrrolidone was observed. This increase is interpreted in terms of the relative reactivity of monomer and polymeric radical in the reaction medium.

Free Radical Copolymerization of Maleic Anhydride with Cyclohexene

2005 ◽  
Vol 42 (4) ◽  
pp. 441-449 ◽  
Author(s):  
Chunqing Li ◽  
Kedong Song ◽  
Huaming Li ◽  
Pengsheng Liu
Keyword(s):  
Free Radical ◽  
Maleic Anhydride ◽  
Radical Copolymerization ◽  
Free Radical Copolymerization
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