Interaction energies for blends of SAN with methyl methacrylate copolymers with ethyl acrylate and n-butyl acrylate

Chu, Jun; Paul, Donald R

doi:10.1016/s0032-3861(98)00499-6

Cited by 27 publications

(59 citation statements)

References 40 publications

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“…In the current study, commercially available epoxidized and maleated olefinic copolymers, ethylene‐methyl acrylate‐glycidyl methacrylate (EMA‐GMA), and ethylene‐ n butyl acrylate‐carbon monoxide‐maleic anhydride (EnBACO‐MAH) were selected as the compatibilizers for ABS/PA6 blends. Epoxy and maleic anhydride groups are responsible for the in situ reaction with end‐groups of PA6; MA and nBA are responsible for the miscibility with SAN11–16 phase of ABS, and ethylene chains act as tougheners because of their relatively low glass transition temperatures. The effects of compatibilizer type and content on blend morphologies, mechanical, dynamic mechanical and thermal properties as the function of blend composition were investigated.…”

Section: Introductionmentioning

confidence: 99%

Effects of olefin‐based compatibilizers on the morphology, thermal and mechanical properties of ABS/polyamide‐6 blends

Özkoç

Bayram

Bayramlı

2007

J of Applied Polymer Sci

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In this study, commercially available epoxidized and maleated olefinic copolymers, EMA-GMA (ethylene-methyl acrylate-glycidyl methacrylate) and EnBACO-MAH (ethylene-n butyl acrylate-carbon monoxide-maleic anhydride), were used at 0, 5, and 10% by weight to compatibilize the blend composed of ABS (acrylonitrile-butadiene-styrene) terpolymer and PA6 (polyamide 6). Compatibilizing performance of these two olefinic polymers was investigated from blend morphologies, thermal and mechanical properties as a function of blend composition, and compatibilizer loading level. Scanning electron microscopy (SEM) studies showed that incorporation of compatibilizer resulted in a fine morphology with reduced dispersed particle diameter at the presence of 5% compatibilizer. The crystallization behavior of PA6 phase in the blends was explored for selected blend compositions by differential scanning calorimetry (DSC). At high compatibilizer level a decrease in the degree of crystallization was observed. In 10% compatibilizer containing blends, formation of g-crystals was observed contrary to other compatibilizer compositions. The behavior of the compatibilized blend system in tensile testing showed the negative effect of using excess compatibilizer. Different trends in yield strengths and strain at break values were observed depending on compatibilizer type, loading level, and blend composition. With 5% EnBACO-MAH, the blend toughness was observed to be the highest at room temperature. 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: [926][927][928][929][930][931][932][933][934][935] 2007

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Section: Introductionmentioning

confidence: 99%

Effects of olefin‐based compatibilizers on the morphology, thermal and mechanical properties of ABS/polyamide‐6 blends

Özkoç

Bayram

Bayramlı

2007

J of Applied Polymer Sci

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“…Copolymerization with other polymers based on a binary interaction model13–15 is often used to produce miscible blends with other high‐performance polymers. Various methacrylates often introduce as a monomer that will be copolymerized with PS 11, 16–19. Knowledge about the interaction energies between PS and various methacrylates is important for use in the rational design of multicomponent polymer systems and systems of some technological significance.…”

Section: Introductionmentioning

confidence: 99%

Characterization of the interaction energies for polystyrene blends with various methacrylate polymers

Kim¹,

Park²,

Kim³

2000

J. Polym. Sci. B Polym. Phys.

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The binary interaction energies between styrene and various methacrylates were determined from newly examined phase boundaries with lattice–fluid theory. Because the blends of polystyrene (PS) and poly(cyclohexylmethacrylate) (PCHMA) were only miscible at high molecular weights when the blends were prepared by solution casting from tetrahydrofuran, we examined the miscibility of other blends by changing the molecular weights of PS or methacrylate polymers. On the basis of the phase‐separation temperature caused by the lower critical solution temperature, the miscibility of PS with the various methacrylates appeared to be in the order PCHMA > poly(n‐propyl‐methacrylate) (PnPMA) > poly(ethyl methacrylate) (PEMA) > poly(n‐butyl‐methacrylate) (PnBMA) > poly(iso‐butyl‐methacrylate) > poly(methyl methacrylate) (PMMA) > poly(tert‐butyl methacrylate), and the branching of butylmethacrylate appeared to decrease the miscibility with PS. The interaction energies between PS with various methacrylates obtained from phase boundaries with lattice–fluid theory reached minimum value corresponding to the styrene/n‐propylmethacrylate interaction. They were in the order PnPMA < PEMA < PCHMA < PnBMA < PMMA. The difference in the order of miscibility and interaction energies might be attributed to the terms related to the compressibility. The phase‐separation temperatures calculated with the interaction energies obtained here indicated that the PS/PEMA and PS/PnPMA blends at high molecular weights were miscible, whereas the PS/PnBMA blends were immiscible at high molecular weights. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 2666–2677, 2000

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“…The MMA‐MA used in this study was synthesized by a modified solution polymerization of the monomers methyl methacrylate, MA, and ethyl acrylate (EA). The EA comonomer increases the thermal stability of the copolymer against depolymerization 12. These monomers were supplied by Metacril, Merck, and Aldrich, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The EA comonomer increases the thermal stability of the copolymer against depolymerization. 12 These monomers were supplied by Metacril, Merck, and Aldrich, respectively. The MMA and EA monomers were distilled twice under reduced pressure at 358C prior to use.…”

Section: Copolymer Synthesismentioning

confidence: 99%

Synthesis and characterization of poly(methyl methacrylate‐co‐maleic anhydride) copolymers and its potential as a compatibilizer for amorphous polyamide blends

Becker

Hage

Pessan

2007

J of Applied Polymer Sci

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Poly(methyl methacrylate-co-maleic anhydride) copolymers (MMA-MA) have been synthesized by solution method, using toluene as solvent and benzoyl peroxide as initiator. The MMA-MA copolymers were characterized by size exclusion chromatography, Fourier transforms infrared spectroscopy (FTIR), and titration. It was found that the modified polymerization procedure used in this work was more effective in controlling the molecular weight when adding different amounts of maleic anhydride (MA) than procedures previously used. In spite of the significant difference in reactivity ratios between MMA and MA, up to 50% of the MA added to the reactor was incorporated into the copolymer. The evidences for reactions of the MA groups of the MMA-MA copolymer with the amine end groups of the amorphous polyamide (aPA) during melt blending was obtained by rheological measurements. In this work, the molecular weight and the content of MA reactive functional groups in the MMA-MA copolymer were varied independently and its effects on the interaction with aPA were studied. It was observed that a compromise between molecular weight and the level of reactive functional group of the compatibilizer should be sought to improve the compatibilization of the polymer systems.

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Interaction energies for blends of SAN with methyl methacrylate copolymers with ethyl acrylate and n-butyl acrylate

Cited by 27 publications

References 40 publications

Effects of olefin‐based compatibilizers on the morphology, thermal and mechanical properties of ABS/polyamide‐6 blends

Effects of olefin‐based compatibilizers on the morphology, thermal and mechanical properties of ABS/polyamide‐6 blends

Characterization of the interaction energies for polystyrene blends with various methacrylate polymers

Synthesis and characterization of poly(methyl methacrylate‐co‐maleic anhydride) copolymers and its potential as a compatibilizer for amorphous polyamide blends

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