Studies on miscibility and phase-separated morphology of nylon 4,6/poly(phenylene sulfide) blend under shear flow

An, Jung-Bum; Suzuki, Takeshi; Ougizawa, Toshiaki; Inoue, Takashi; Mitamura, Kenji; Kawanishi, Kazuo

doi:10.1081/mb-120004342

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…It was demonstrated that the so-compatibilized interface in PPS/LCP blends significantly contributes to the enhancement of tensile properties and impact strength. 10 The second group of PPS blends is formed with conventional engineering plastics with thermal stability between 100-140 1C for long usage such as crystalline polyamide (PA) [11][12][13] and poly(ethylene terephthalate) (PET), [14][15][16] and amorphous poly(phenylene ether) 17 and polycarbonate (PC). 18 It is reported that (20/80) PPS/PA4,6 (T m of PA4,6¼295 1C) blends have a miscible region, which appears under a high shear rate at 310-320 1C 13 although the solubility parameter of PPS is extremely high (12.5 (cal cm À3 ) 0.5 ) compared with other polymers and this makes it difficult for PPS to have miscibility with other polymers.…”

Section: Introductionmentioning

confidence: 99%

High performance reactive blends composed of poly(p-phenylene sulfide) and ethylene copolymers

Oyama

Matsushita

Furuta

2011

Polym J

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Poly(p-phenylene sulfide) (PPS) is a high performance polymer that has superior chemical resistance and heat stability, but its brittleness is a serious drawback for applications. The objective of this work is to improve the physical properties of PPS by incorporating a small amount of either poly(ethylene-ran-methylacrylate-ran-glycidyl methacrylate) (EMA-GMA) or poly(ethyleneran-glycidyl methacrylate)-graft-poly(methyl methacrylate) (EGMA-g-PMMA) by melt mixing under a high shear rate. It was demonstrated that the chemical reaction between PPS and EMA-GMA (or EGMA-g-PMMA) proceeded efficiently at the interface and that the domains of EMA-GMA (or EGMA-g-PMMA) were finely dispersed in the PSS matrix with size of ca 0.1-0.3 lm. The resultant copolymers formed at the interface contributed to a decrease in the interfacial tension and an increase in the interfacial adhesion so that the obtained PPS/EMA-GMA blends (or PPS/EGMA-g-PMMA blends) showed excellent mechanical properties, at the same time retaining high thermal stability. Polymer Journal ( , good electrical and electronic properties, good mold precision, and high stiffness and modulus (tensile modulus¼2600-3900 MPa). 1 The semi-crystalline PPS has a T g of 88-93 1C, T m of 280-285 1C and an equilibrium melting point of its orthorhombic crystals at 303-350 1C. 1-3 Furthermore, PPS shows extraordinary flame retardance, having a limited oxygen index of 44%, which belongs to the highest group among polymeric materials together with poly(vinyl chloride) and polyimide. 4 So taking advantage of these unique properties, PPS has been applied as an alternative material for metals and thermoset polymers; for example, automobile parts and electrical and electronics parts. 1 However, its low toughness and high brittleness, which originate from its rigid structure, are serious drawbacks, preventing further applications.Thus, in order to improve the properties of PPS, blending of PPS has been intensively studied, and can be categorized into three groups. The first group of PPS blends are formed with other high performance super-engineering plastics, such as polysulfone, 5 poly(ether sulfone) (PES) 6,7 and liquid crystalline polymers (LCPs), 8-10 which have thermal stability over 150 1C for long durations. It is reported that PPS blends having an amorphous polysulfone matrix (p50 wt% of PPS) show good tensile properties, but that blends having a PPS matrix (450 wt% of PPS) become brittle. 5 It was found that PPS and PES are partially miscible, in which PES is also an amorphous polymer having excellent mechanical properties. 6 Although mechanical proper-

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Section: Introductionmentioning

confidence: 99%

High performance reactive blends composed of poly(p-phenylene sulfide) and ethylene copolymers

Oyama

Matsushita

Furuta

2011

Polym J

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“…PPS is not soluble in any solvent under 200°C and usually forms immiscible two‐phase blends 24–39 except for those prepared under very high shear rates 40 . The crystallization behavior of PPS has been extensively studied, with most of the kinetic studies carried out using differential scanning calorimetry (DSC) in nonisothermal crystallization during cooling from the molten state.…”

Section: Introductionmentioning

confidence: 99%

Control of crystallization in two‐phase blends of poly(phenylene sulfide) and poly(vinylpyrrolidone)

Nara

Watanabe

Oyama

et al. 2020

Polymer Crystallization

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This paper reports for the first time the use of poly(N‐vinylpyrrolidone) (PVP) as an effective additive for controlling the melt crystallization behavior of poly(p‐phenylene sulfide) (PPS). The PPS/PVP blends form two‐phases, whose melt crystallization temperature decreases drastically upon the addition of PVP accompanied by a delayed onset of crystallization and a decreased crystallization rate. Monitoring spherulite growth during isothermal annealing revealed that in blends with less than 5 wt% of PVP the diminution of the crystallization rate of PPS is due to a decrease in both the nucleation rate and the spherulite growth rate, whereas in blends with higher PVP content the falloff in rate is mainly caused by slow nucleation. A change was observed in the glass transition temperature and melting temperature of PPS upon blending, suggesting that the blends are partially miscible. The delay in crystallization is likely due to the partial miscibility disturbing exclusion of PVP from the crystalline growth front.

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Compatibilization of ethylene/maleic anhydride/glycidyl methacrylate terpolymer for poly(phenylene sulfide)/poly(amide‐66) blends

Zheng

Leng

et al. 2011

J of Applied Polymer Sci

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In this article, a terpolymer of ethylene, maleic anhydride, and glycidyl methacrylate (EMG) was used to enhance the compatibilization between poly(phenylene sulfide) (PPS) and polyamide-66 (PA66). The mechanical properties, morphology, crystalline and melting behavior, and rheology of blends were discussed. The results showed that EMG was a good compatibilizer for PPS and PA66 through chemical reaction with them. The new generated polymer could prevent the aggregation of dispersed particles and reinforce the interface bonding. In addition, it could not only act as a nucleating agent for PA66 to refine its spherulites and improve its crystallinity but also promote the apparent viscosity of blends and enhance the non-Newtonian behavior. The results will be useful to make high performance PPS/PA66 alloy with low cost and enlarge the application scope of PPS and PA66 resin.

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Studies on miscibility and phase-separated morphology of nylon 4,6/poly(phenylene sulfide) blend under shear flow

Cited by 8 publications

References 23 publications

High performance reactive blends composed of poly(p-phenylene sulfide) and ethylene copolymers

High performance reactive blends composed of poly(p-phenylene sulfide) and ethylene copolymers

Control of crystallization in two‐phase blends of poly(phenylene sulfide) and poly(vinylpyrrolidone)

Compatibilization of ethylene/maleic anhydride/glycidyl methacrylate terpolymer for poly(phenylene sulfide)/poly(amide‐66) blends

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