Polymer blends with two kinds of elastomeric ionomers

Xie, Huaqing; Xu, Ji‐Geng; Zhou, Siyuan

doi:10.1016/0032-3861(91)90568-4

Cited by 43 publications

(26 citation statements)

References 2 publications

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“…Cocontinuous polymer blends can have a number of advantageous properties, making them ideal for a wide range of applications. Some of the useful properties of cocontinuous polymer blends include: synergistic mechanical properties [2,3], controlled electrical conductivity [4], or selective permeability [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of sample size on solvent extraction for detecting cocontinuity in polymer blends

Galloway

Koester

Paasch

et al. 2004

Polymer

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Section: Introductionmentioning

confidence: 99%

Effect of sample size on solvent extraction for detecting cocontinuity in polymer blends

Galloway

Koester

Paasch

et al. 2004

Polymer

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“…Since there are some similarities between methyl groups-containing amorphous phase of PP and vinyl groups-containing SBS phase, the components show certain affinity for each other, and during melting the segments of different macromolecules diffuse into each other at interfaces between the two phases, where the three physical crosslinks penetrate into each other and enhance the compatibility of the two components, thus increasing the interfacial adhesion and the ability to transfer stress through phases, resulting in synergism in strength (22).…”

Section: Xie Et Al 156mentioning

confidence: 99%

Synthesis, Characterization and Properties of Novel Amphiphilic Phosphated Ionomers by Ring‐Opening Reaction of Epoxidized Styrene‐Butadiene‐Styrene Triblock Polymer

Xie

Zhao

Tian

et al. 2007

Journal of Macromolecular Science, Part A

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A method for synthesis of novel phosphated ionomer of (styrene-butadiene-styrene) triblock polymer (SBS) from epoxidized SBS was developed. The optimum conditions for the ring-opening reaction of the epoxidized SBS with aqueous solution of disodium hydrogen phosphate were studied. It was found that during the ring-opening reaction phase transfer catalyst, ring-opening catalyst and pH regulator were necessary to enhance the conversion of epoxy groups to ionic groups. The products were characterized with Fourier Transform Infrared Spectrophotometry (FTIR) and transmission electron microscopy (TEM). Some properties of the phosphated ionomer were studied. With increasing ionic groups or the ionic potential of the cation of the ionomer, the water absorbency emulsifying volume and the intrinsic viscosity of the ionomer increase, whereas the oil absorbency decreases. The ionomer possesses excellent emulsifying property, as compared with the sulfonated ionomer. The disodium phosphated ionomers in the presence of 10% zinc stearate showed better mechanical properties than the original epoxy SBS. Optimum mechanical properties occurred at the ionic group content of 0.95 mmol/g ionomer. When the ionomer was blended with crystalline polypropylene, a synergistic effect occurs with respect to the tensile strength. The ionomer behaves as a compatibilizer for blending equal amount of SBS and oil-resistant chlorohydrin rubber (CHR) to form an oil resistant thermoplastic elastomer. SEM microphotographs indicated enhanced compatibility between the two components of the blend in the presence of the ionomer.

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“…Since there are some similarities between the methyl groups-containing amorphous phase of PP and the vinyl groups-containing polybutadiene block of SBS phase, the components show certain affinity for each other and the segments of different macromolecules diffuse into each other during melt blending, especially at interfaces between the two phases. 15 At the interfaces, the two physical crosslinks penetrate into each other. This will enhance compatibility of the two components; thus, increasing the interfacial adhesion and the ability to transfer stress through the phases, resulting in synergism in strength.…”

Section: Blends Of Nassbs With Polypropylenementioning

confidence: 99%

“…Paul 13 pointed out the synergism in strength in the polymer blends. In 1989, Xie et al reported that the blends of sulfonated EPDM ionomer 14 or sulfonated butyl rubber ionomer 15 with crystalline PP, high-density polyethylene (HDPE), or SBS exhibited synergistic behavior with respect to tensile strength. Hara and Eisenberg 16 indicated the miscibility enhancement via ion-dipole interaction between polystyrene (PSt) ionomer and poly(alkylene oxide).…”

Section: Introductionmentioning

confidence: 98%

Behavior of ionomers of sulfonated styrene–butadiene–styrene triblock copolymer in polymer blends with crystalline polyolefins and as compatibilizer

Xie

Liu

Xie

et al. 2005

J of Applied Polymer Sci

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ABSTRACT:The blends of ionomers of sulfonated (styrene-butadiene-styrene) triblock copolymer with two polyolefins as well as the blends of polystyrene (PSt) with two polar, oil-resistant elastomers, i.e., chlorohydrin rubber (CHR) and chlorosulfonated polyethylene (CSPE), using the ionomer as compatibilizer were studied. The blends of the ionomer with polypropylene or high density polyethylene showed synergistic effects with respect to tensile strength. With increasing PSt content, the blends change their behavior from thermoplastic elastomer to toughened plastics. The synergism is probably because of the thermoplastic interpenetrating polymer networks formed in the blend. The blends exhibited high resistance against diesel oil or toluene.When PSt was blended with CHR or CSPE using the ionomer as compatibilizer, only 2 or 3% ionomer was needed to enhance the mechanical properties of the blends. The effect is due to the ion-polar interaction of the ionomer with the polar polymer. The enhanced compatibility of the blends by the ionomer was demonstrated by DSC and Scanning electron micrograph.

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Polymer blends with two kinds of elastomeric ionomers

Cited by 43 publications

References 2 publications

Effect of sample size on solvent extraction for detecting cocontinuity in polymer blends

Effect of sample size on solvent extraction for detecting cocontinuity in polymer blends

Synthesis, Characterization and Properties of Novel Amphiphilic Phosphated Ionomers by Ring‐Opening Reaction of Epoxidized Styrene‐Butadiene‐Styrene Triblock Polymer

Behavior of ionomers of sulfonated styrene–butadiene–styrene triblock copolymer in polymer blends with crystalline polyolefins and as compatibilizer

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