Polymer blends of polyamide-6 and poly(phenylene oxide) compatibilized by styrene-co-glycidyl methacrylate

Chiang, Chiu-Chih; Chang, Feng‐Chih

doi:10.1002/(sici)1097-4628(19960926)61:13<2411::aid-app21>3.0.co;2-5

Cited by 68 publications

(37 citation statements)

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“…Moreover, grafting of the high RGC SAN-NH 2 chains (type b) to EP leads to a comblike conformation for the in situ formed SAN-g-EP copolymer 25,26 (i.e., relatively small SAN segments penetrating into the SAN phase), which may form a barrier against further diffusion of the reactive precursors and formation of new in situ copolymer. 25 This effect also contributes to a decrease in the apparent S c at saturation.…”

Section: Effect Of Rgc Of Reactive Sanmentioning

confidence: 99%

Reactivity of functional SAN toward coreactive EPR‐g‐MA at planar interface

Pagnoulle

Moussaif

Riga

et al. 2000

J. Polym. Sci. A Polym. Chem.

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The grafting kinetics of reactive poly(styrene-co-acrylonitrile) (SAN) onto EPR-g-MA was studied under isothermal conditions, at the planar interface of an SAN/ethylene-propylene rubber (EPR) bilayer film in relation to the type of reactive groups, NH 2 versus carbamate (which is an amine precursor), attached to SAN. The amount of SAN chemically bound to EPR chains at the interface was estimated by selectively washing off the unreacted SAN chains before X-ray photon spectroscopic analysis of the released surface. It is clear that the mutual reactivity of the reactive groups, i.e., the NH 2 -MA pair versus the carbamate-MA pair, has a decisive effect on the amount of SAN that reacts with EPR-g-MA at the interface. In case of SAN-carb, the grafting reaction is controlled by the thermolysis of the carbamate groups into primary amines.

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Section: Effect Of Rgc Of Reactive Sanmentioning

confidence: 99%

Reactivity of functional SAN toward coreactive EPR‐g‐MA at planar interface

Pagnoulle

Moussaif

Riga

et al. 2000

J. Polym. Sci. A Polym. Chem.

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“…5,6 However, PPO is incompatible with PA 6, and the simple melt blending of PPO and PA 6 generally shows a deterioration in impact and tensile properties. 7 Such a reduction in properties is frequently a reflection of poor interfacial adhesion between dispersed phase and continuous matrix that leads to rapid initiation and growth of cracks. 8,9 Thus, it is reasonable to expect that some form of compatibilization would be required to prepare a useful alloy.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization and toughening of poly(2,6‐dimethyl‐1,4‐phenylene oxide)/polyamide 6 alloy with poly(ethylene 1‐octene): Mechanical properties, morphology, and rheology

Wang

Wei

et al. 2003

J of Applied Polymer Sci

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Blends of a poly(2,6-dimethyl-1,4-phenylene oxide) (PPO)/polyamide 6 (PA 6) alloy toughened with a novel polyolefin elastomer poly(ethylene-1-octene) (POE) were prepared via melt extrusion. In order to improve the compatibilization between POE and the PPO/PA 6 alloy, POE was grafted with maleic anhydride (MA), which could react with the amine group of PA 6. The Izod impact strength of the blends exhibited an optimum when the extent of MA grafting of POE was changed, which is an order of magnitude higher than that of the untoughened blends. The morphology revealed that the size of the POE particles decreased with an increasing MA grafting ratio of POE. Studies on the tensile properties and rheology of the blends were also carried out.

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“…Furthermore, the presence of 5% GMA in the SG copolymer exhibited the highest tensile strength in all compositions. As reported previously, 24 a higher GMA content in SG may produce an excessively grafted copolymer, which is considered a less effective compatibilizer. An SG copolymer with a lower GMA content has the advantage of producing lightly grafted copolymers; but it also has the tendency to produce fewer numbers of grafted copolymers.…”

Section: Melt Flow Ratementioning

confidence: 64%

Polymer blends of poly(trimethylene terephthalate) and polystyrene compatibilized by styrene‐glycidyl methacrylate copolymers

Huang

2003

J of Applied Polymer Sci

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ABSTRACT:The compatibilizing effects of styrene-glycidyl methacrylate (SG) copolymers with various glycidyl methyacrylate (GMA) contents on immiscible blends of poly(trimethylene terephthalate) (PTT) and polystyrene (PS) were investigated using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and 13 C-solid-state nuclear magnetic resonance (NMR) spectroscopy. The epoxy functional groups in the SG copolymer were able to react with the PTT end groups (OCOOH or OOH) to form SG-g-PTT copolymers during melt processing. These in situ-formed graft copolymers tended to reside along the interface to reduce the interfacial tension and to increase the interfacial adhesion. The compatibilized PTT/PS blend possessed a smaller phase domain, higher viscosity, and better tensile properties than did the corresponding uncompatibilized blend. For all compositions, about 5% GMA in SG copolymer was found to be the optimum content to produce the best compatibilization of the blend. This study demonstrated that SG copolymers can be used efficiently in compatibilizing polymer blends of PTT and PS.

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Polymer blends of polyamide-6 and poly(phenylene oxide) compatibilized by styrene-co-glycidyl methacrylate

Cited by 68 publications

References 0 publications

Reactivity of functional SAN toward coreactive EPR‐g‐MA at planar interface

Reactivity of functional SAN toward coreactive EPR‐g‐MA at planar interface

Compatibilization and toughening of poly(2,6‐dimethyl‐1,4‐phenylene oxide)/polyamide 6 alloy with poly(ethylene 1‐octene): Mechanical properties, morphology, and rheology

Polymer blends of poly(trimethylene terephthalate) and polystyrene compatibilized by styrene‐glycidyl methacrylate copolymers

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