Complex-radical copolymerization of N-acetate and N-tri-n-butylstannylacetate maleimides with vinyl monomers

Mamedova, S.G.; Rzayev, Zakir M. O.; Medyakova, L.V.; Rustamov, F.B.; Askerova, N.M.

doi:10.1016/0032-3950(87)90021-9

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…'2,cm"1 Figure 1. Fragments of IR spectra of AC (1), poly-AC (2), and AC-St copolymer (3). by using the Kelen-Tüdós equation18 = (rx + 2/ ) + r2/a where a is a symmetrization parameter, and r¡ and are variables determined from the copolymer composition (see Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…It has previously been demonstrated that complex-radical copolymerization of bifunctional monomers such as allyl esters of maleic, fumaric, acrylic, and a-(iV-maleimido)acetic acids proceeds successfully via formation of alternating copolymers with unsaturated and cyclolinear structure. [1][2][3][4][5] In this study the results of investigations on radical polymerization of the D-A monomer system with participation of bifunctional allyl cinnamate (AC) and styrene (St) in methyl ethyl ketone (MEK) at 60 °C, in the presence of 2,2'-azobis(isobutyronitrile) (AIBN), are discussed.…”

Section: Introductionmentioning

confidence: 99%

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Complex-Radical Copolymerization of Allyl Cinnamate with Styrene

Rzaev¹,

Medyakova²,

Ki̇barer³

et al. 1994

Macromolecules

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Some peculiarities in the radical copolymerization of trans-allyl cinnamate, a bifunctional monomer containing donor (allyl) and acceptor (cinnamic) double bonds in the molecule, with styrene in methyl ethyl ketone, at 60 "C, using 2,2'-azobis(isobutyroniti1e) as the initiator have been revealed. Kinetic parameters of copolymerization such as complex formation, cyclization, and copolymerization constants and ratios of chain growth rates for the participation of monomeric charge transfer complexes (CTC) and free monomers are all determined. The results show that an alternative copolymerization reaction is realized which is carried out via a "mixed" mechanism with formation of macromolecules of unsaturated cyclolinear structures. It has been established that the chain growth proceeds predominantly through the reaction of cinnamic macroradicals with CTC and free styrene monomer. It has been proved that obtained copolymer is highly sensitive to UV-irradiation, E-beams. and X-rays, providing high lithographic parameters and plasmastability for its negative resists

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complex-Radical Copolymerization of Allyl Cinnamate with Styrene

Rzaev¹,

Medyakova²,

Ki̇barer³

et al. 1994

Macromolecules

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“…The well‐defined alternating copolymers of MAh or N‐substituted MAh exhibit unique properties such as superior thermal stabilities,1 fire resistances,2 photo‐, X‐ray and E‐beam sensitivities,3 catalytic and chiroptical activities,4 and are extremely low band gap materials 5. These copolymers prepared at high temperature (>60 °C) by conventional free radical methods have a very complicated sequence structure 6.…”

Section: Introductionmentioning

confidence: 99%

Study on controlled radical alternating copolymerization of styrene with maleic anhydride under UV irradiation

Pan

2003

Polymer International

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The copolymerization of styrene with maleic anhydride (MAh) in the presence of 1‐(ethoxycarbonyl)prop‐1‐yl dithiobenzoate was carried out under UV irradiation at room temperature, and showed ‘living’ polymerization nature which was evidenced by: linear evolution of molecular weight with conversion; and narrow molecular weight distribution (Mw/Mn = 1.08–1.20). The compositional analysis and the sequence structural information of the copolymer obtained from Distortionless Enhancement by Polarization Transfer (DEPT) NMR experiments demonstrated that the copolymers obtained possess strictly alternating structure. © 2003 Society of Chemical Industry

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Complex‐radical cyclocopolymerization of allyl a‐(N‐maleimido)acetate with styrene and maleic anhydride

Rzaev

Salamova

Altındal

1997

Macro Chemistry & Physics

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Radical copolymerizations of allyl a-(Nma1eimido)acetate (AMI) with styrene (D, electron-donor) or maleic anhydride (A, electron-acceptor) were carried out in benzene and/or methyl ethyl ketone (MEK) at 50-70 "C in the presence of 2,2'-azoisobutyronitrile (AIBN) as initiator. The structure and properties of copolymers synthesized were derived from IR, chemical, DTA and TGA analyses. Side-chain unsaturation of macromolecules was also proved by the crosslinking effect observed. Kinetic parameters of copolymerization such as complex-formation (K,), cyclization (kc,,), and copolymerization constants and ratios of chain growth rates for the participation of monomer charge transfer complexes (CTC) and free monomers for both systems were obtained: K, = 0,20 i 0,Ol and 0,05 f 0,005 L/mol in CH3COOH-d4 at 35 i 0,l "C ('H NMR method) for D...AMI and AML.. A complexes, respectively; kcyc * lo5 = 1.71 and 0,66 L/(mol * s), rl = 0,13 i 0,Ol and 0,037 i 0,002, r2 = 0,048 * 0.002 and 0,052 * 0,002 (by Kelen-TudQ method), kI2/ kZ1 = 0,20 and 0,62, klc/k12 = 0,6 and 29,8, k2clk21 = 4,8 and 9,l for the D-AM1 and AMI-A systems, respectively. The results show that alternating cyclocopolymerization reactions are realized which are carried out via a "mixed" mechanism in the D-AM1 system and via a "complex" mechanism in the AMI-A system, with formation of cyclolinear macromolecules containing side-chain unsaturated fragments of "allyl" (D-AM1 copolymer) and "imide" (AMI-A copolymer) types. The synthesized copolymers easily undergo crosslinking by thermotreatment (105 "C, 30 min) and/or by UV-irradiation (25 "C, 15 min), which was confirmed by DTA and TGA analyses.

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Complex-radical copolymerization of N-acetate and N-tri-n-butylstannylacetate maleimides with vinyl monomers

Cited by 8 publications

References 7 publications

Complex-Radical Copolymerization of Allyl Cinnamate with Styrene

Complex-Radical Copolymerization of Allyl Cinnamate with Styrene

Study on controlled radical alternating copolymerization of styrene with maleic anhydride under UV irradiation

Complex‐radical cyclocopolymerization of allyl a‐(N‐maleimido)acetate with styrene and maleic anhydride

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