Blends Based on Copolymers of Methyl Methacrylate with Phenyl Maleimide and Tribromophenyl Maleimide

Merfeld, G. D.; Chan, Ken; Paul, Donald R

doi:10.1021/ma981230p

Cited by 13 publications

(13 citation statements)

References 43 publications

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“…During recent decades, the increasing requirements of high‐technology industries have been the driving force in the development of new synthetic and artificial polymer systems that combine thermal stability with specific functional properties. Copolymerization reactions involving N ‐phenylmaleimide ( N ‐PhMI) monomer have generated great interest because of the large number of possibilities that they offer in the preparation of new materials with improved properties, including flame and heat resistance as well as thermal and chemical stability 1–10. Maleimide polymers have good thermal stability with high glass transition temperatures due to their polar five‐membered imide ring structure,11 and interest in the synthesis of new types of these polymeric materials as well as the modification of the primary structure of the polymers continues to grow 12–14…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of hydrophilic copolymers of maleimide derivatives with 2‐hydroxyethyl methacrylate: electrochemical and thermal behavior

Pizarro

Marambio

Jeria‐Orell

et al. 2009

Polymer International

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BACKGROUND: The high‐technology industries have been the driving force in the development of new synthetic polymers that combine thermal stability with specific functional properties. In this study p‐chlorophenylmaleimide, p‐hydroxyphenylmaleimide and p‐nitrophenylmaleimide (R‐PhMI) with 2‐hydroxyethyl methacrylate (HEMA) were synthesized by free radical polymerization to obtain hydrophilic polymers, in order to study the effect of the p‐chloroaryl, p‐hydroxyaryl or p‐nitroaryl group on the copolymer composition, electrochemical behavior and thermal properties. RESULTS: The thermal behavior was correlated with the copolymer composition and functional groups, maleimide derivatives, on the copolymers. Thermal decomposition temperature (TDT) and glass transition temperature (Tg) were influenced by the functional groups of R‐PhMI moiety on the copolymer. The polymers showed an electrochemically irreversible reduction process under the conditions tested. CONCLUSION: Poly[(p‐chloromaleimide)‐co‐(2‐hydroxyethyl methacrylate)] copolymer shows a higher TDT than poly[(p‐hydroxymaleimide)‐co‐(2‐hydroxyethyl methacrylate)] or poly[(p‐nitromaleimide)‐co‐(2‐hydroxyethyl methacrylate)] (NPHE). Tg decreases in going from nitro to hydroxyl to chloro groups. The NPHE copolymer shows a lower stability, losing weight at 200 °C. The NPHE copolymer shows a well‐defined reduction wave which is similar to those of the other copolymers and it also shows an additional quasi‐reversible reduction wave corresponding to the nitrobenzene group. Copyright © 2009 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of hydrophilic copolymers of maleimide derivatives with 2‐hydroxyethyl methacrylate: electrochemical and thermal behavior

Pizarro

Marambio

Jeria‐Orell

et al. 2009

Polymer International

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“…In recent years, particular attention has been paid to the copolymerization of N-substituted maleimide with vinyl monomers such as methyl methacrylate (MMA), styrene (St), because of their interesting polymerization behavior and the superior thermal properties of the resulting copolymers. [1][2][3][4] It has been experimentally and theoretically 5 proven that the incorporated N-substituted maleimide unit can effectively enhance both the glass transition temperature (T g ) and the thermal degradation temperature of these copolymers. While increasing T g , however, the higher backbone rigidity also inevitably causes the decrease of the mechanical properties such as tensile strength and impact strength.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of terpolymer of N‐cyclohexylmaleimide, methyl methacrylate, and acrylonitrile

Yang

Sun

2007

J of Applied Polymer Sci

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Terpolymers of N-cyclohexylmaleimide, methyl methacrylate, and acrylonitrile (AN) at different AN feed content were synthesized by suspension polymerization. The thermal properties of the terpolymers such as glass transition temperature (T g ) and Vicat softening temperature (T Vicat ) were determined by torsion braid analysis and Vicat softening temperature tester, respectively. The value of T g and T Vicat decreased with increasing AN feed content. Thermogravimetric analyses were carried out with the results that the incorporated AN units enhanced the thermal stability of the resulting polymers and a second degradation step appeared with the addition of AN. The mechanical properties (tensile strength and impact strength) of the terpolymers were also detected and the results show that the tensile strength and impact strength of terpolymers increase with increasing AN feed content. The rheological results illustrated that the terpolymers showed rheological behavior similar to that of pseudoplastic liquid. The apparent shear viscosity decreased with the increasing of AN feed content. The flow power index n increased with increasing AN feed content.

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“…[5][6][7] . Studies on glass transition temperature, rehological behavior, and morphology of these blends are limited, furthermore the properties of the copolymer of the NPTMI and MMA have not been reported until now.…”

Section: Introductionmentioning

confidence: 99%

Study on Properties of PVC Blended with Emulsion Copolymer ofN-p-tolylmaleimide and Methyl Methacrylate

Yang

Liu

2007

Polymer-Plastics Technology and Engineering

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Copolymers of N-p-tolylmaleimide (NPTMI) and methyl methacrylate (MMA) were synthesized by semi-batch emulsion polymerization. The thermal properties of copolymers and poly (vinyl chloride) (PVC) blended with copolymers had been investigated by thermogravimotric analysis (TGA), torsional braid analysis (TBA) and Vicat softening temperature tester. The results show that the glass transition temperature (T g ) and Vicat softening temperature (T Vicat ) of copolymers increase with increasing NPTMI feed content. The initial decomposition temperature (T ini ) and the temperature where the residual weight reached 50% (T 50 ) also increase with increasing NPTMI feed content. The T g and T Vicat of the blends increase with increasing copolymer feed content. The mechanical properties and rheological behavior were also determined. The results show that the tensile strength of the blendes increase with increasing copolymer feed content while the impact strength keep at the same level. The reheological result illustrated that the blends in melt showed rheological behavior similar to that of pseudoplastic liquid. The apparent viscosity of blends in melt increase with increasing copolymer feed content. The compatibility of the blend system was also investigated by TBA and scanning electro micrograph (SEM).

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Blends Based on Copolymers of Methyl Methacrylate with Phenyl Maleimide and Tribromophenyl Maleimide

Cited by 13 publications

References 43 publications

Synthesis and characterization of hydrophilic copolymers of maleimide derivatives with 2‐hydroxyethyl methacrylate: electrochemical and thermal behavior

Synthesis and characterization of hydrophilic copolymers of maleimide derivatives with 2‐hydroxyethyl methacrylate: electrochemical and thermal behavior

Synthesis and characterization of terpolymer of N‐cyclohexylmaleimide, methyl methacrylate, and acrylonitrile

Study on Properties of PVC Blended with Emulsion Copolymer ofN-p-tolylmaleimide and Methyl Methacrylate

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