Copolymerization of vinyl acetate with benzylidenemalononitrile

Kharas, Gregory B.; Kohn, David H.

doi:10.1002/pol.1984.170220307

Cited by 31 publications

(10 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5). TGA thermograms of these fluoropolymers indicated that the process of degradation depends on the nature of the cyano monomer as it was observed in AN or MAN with methyl a-acetoxylacrylate copolymers [46].…”

Section: Thermal Properties Of the Copolymersmentioning

confidence: 93%

“…The incorporation of polar cyano groups in the copolymer backbone resulted in an increase of T g due to chain stiffening and marked inhibition or rotation about C-C bonds. The presence of strong CN dipoles in the backbone increases the interaction between the chains [46]. The low T g value in the poly(MVCN-co-MATRIF) copolymer arises from the low incorporation of MVCN which reduces the interaction between the main chains.…”

Section: Thermal Properties Of the Copolymersmentioning

confidence: 97%

See 1 more Smart Citation

Radical copolymerization of 2,2,2-trifluoroethyl methacrylate with cyano compounds for dielectric materials: Synthesis and characterization

Raihane¹,

Améduri

2006

Journal of Fluorine Chemistry

View full text Add to dashboard Cite

Section: Thermal Properties Of the Copolymersmentioning

confidence: 93%

Section: Thermal Properties Of the Copolymersmentioning

confidence: 97%

Radical copolymerization of 2,2,2-trifluoroethyl methacrylate with cyano compounds for dielectric materials: Synthesis and characterization

Raihane¹,

Améduri

2006

Journal of Fluorine Chemistry

View full text Add to dashboard Cite

“…(8) where [M,] (8) requires a knowledge of the concentrations of uncomplexed monomers in each of the monomer feeds. These were calculated from the initial concentrations of monomers in the feeds using the value of the equilibrium constant for the NVP-PDE monomer complex formation, K = 0.08 L/mol, which was determined by proton NMR.…”

Section: Copolymerization Studiesmentioning

confidence: 99%

Copolymerization of N‐vinyl‐2‐pyrrolidone and 2‐phenyl‐1,1‐dicyanoethene

Kharas¹

1988

J of Applied Polymer Sci

View full text Add to dashboard Cite

SynopsisRadical copolymerization of N-vinyl-2-pyrrolidone (NVP) with 2-phenyl-1,l-dicyanoethene (PDE) was studied in benzene at 70°C. Terminal, penultimate, and monomer complex participation kinetic models were applied to compositional data for best prediction of the copolymer composition. Both penultimate and complex models described satisfactorily the deviation from the terminal copolymerization model, although the complex model did not predict as well as the penultimate model at high NVP/PDE monomer feed ratios. Copolymerization reactivity ratios rNVP = 0.08 and rfNVP = 1.8 indicated substantial effect of the penultimate PDE monomer unit associated with polar repulsion of cyano groups. Equilibrium constant of NVP-PDE comonomer complex formation was found to be 0.08 L/mol as estimated by proton nuclear magnetic resonance (NMR) analysis of PDE's vinylic proton chemical shift upon complexation. Rate constants of propagation reactions were estimated by applying terminal complex copolymerization model.

show abstract

“…Co-polymerization of TSE having double bonds substituted with halo, cyano and carbonyl groups, and electron-rich monosubstituted ethylenes such as styrene, N -vinylcarbazole and vinyl acetate [3][4][5] show a tendency toward the formation of alternating co-polymers. Ringunsubstituted 2-phenyl-1,1-dicyanoethylene was co-polymerized with styrene [6], vinyl acetate [7], vinyl ethers [8], methyl methacrylate [9] and N -vinyl-2-pyrrlidone [10,11].…”

Section: Introductionmentioning

confidence: 99%

Novel Co-polymers of Vinyl Acetate and Ring-tri-substituted 2-Phenyl-1,1-dicyanoethylenes

Kharas

Hanawa

Osner

et al. 2009

Designed Monomers and Polymers

View full text Add to dashboard Cite

Electrophilic tri-substituted ethylene monomers, ring-tri-substituted 2-phenyl-1,1-dicyanoethylenes, RC 6 H 2 CH=C(CN) 2 (where R is 2,4,6-trimethyl, 2,3-dimethyl-4-methoxy, 2,4-dimethoxy-3-methyl, 2,3,4-trimethoxy, 2,4,5-trimethoxy, 2,4,6-trimethoxy and 3,4,5-trimethoxy), were synthesized by piperidinecatalyzed Knoevenagel condensation of ring-substituted benzaldehydes and malononitrile, and characterized by CHN elemental analysis, IR, 1 H-and 13 C-NMR. Novel co-polymers of the ethylenes and vinyl acetate were prepared at equimolar monomer feed composition by solution co-polymerization in the presence of a radical initiator (ABCN) at 70 • C. The composition of the co-polymers was calculated from nitrogen analysis, and the structures and properties were analyzed by IR, 1 H-and 13 C-NMR, GPC, DSC and TGA. The high T g of the co-polymers, in comparison with that of polyvinyl acetate, indicates a substantial decrease in chain mobility of the co-polymer due to the high dipolar character of the tri-substituted ethylene monomer unit. Thermogravimetric analysis indicated that the co-polymers decompose in the 190-700 • C range. © Koninklijke Brill NV, Leiden, 2009

show abstract

Copolymerization of vinyl acetate with benzylidenemalononitrile

Cited by 31 publications

References 15 publications

Radical copolymerization of 2,2,2-trifluoroethyl methacrylate with cyano compounds for dielectric materials: Synthesis and characterization

Radical copolymerization of 2,2,2-trifluoroethyl methacrylate with cyano compounds for dielectric materials: Synthesis and characterization

Copolymerization of N‐vinyl‐2‐pyrrolidone and 2‐phenyl‐1,1‐dicyanoethene

Novel Co-polymers of Vinyl Acetate and Ring-tri-substituted 2-Phenyl-1,1-dicyanoethylenes

Contact Info

Product

Resources

About