REACTIVE COMPATIBILIZATION OF POLYISOPRENE/POLYDIMETHYLSILOXANE INTERFACES

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Nasrollah Gavgani Jaber; Faramarzi Jolfaei Amir; GOHARPEY FATEMEH; Velankar Sachin; FOUDAZI REZA

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL SEMINAR ON POLYMER SCIENCE AND TECHNOLOGY
Year:2014 | Issue:11

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Title

REACTIVE COMPATIBILIZATION OF POLYISOPRENE/POLYDIMETHYLSILOXANE INTERFACES

Author(s)

Keywords

REACTIVE COMPATIBILIZATION

CROSSLINKED COPOLYMERS

RHEOLOGY

DROPS COALESCENCE

DOUBLE EMULSION

Abstract

THE IMMISCIBLE BLENDS OF POLYDIMETHYLSILOXANE (PDMS) AND POLYISOPRENE (PI) WERE REACTIVELY COMPATIBILIZED BY MEANS OF MULTIFUNCTIONAL REACTIVE COMPOUNDS CAPABLE OF FORMING CROSSLINKED COPOLYMERS AT THE INTERFACE. INTERFACIAL CHEMICAL REACTION WAS OCCURRED BETWEEN AMINE-FUNCTIONAL PDMS AND MALEIC ANHYDRIDE-FUNCTIONAL PI. DROPLET-MATRIX BLENDS OF PI/PDMS WITH DIFFERENT REACTIVE COMPATIBILIZER LOADINGS WERE EXAMINED BY OPTICAL MICROSCOPY AND RHEOMETRY. THE PI-CONTINUOUS BLENDS SHOW DOUBLE EMULSION MORPHOLOGY INCLUDING DROP CLUSTERS AND SOME DROPS WITH APPARENTLY ROUGH INTERFACES. IN CONTRAST, PDMS-CONTINUOUS BLENDS DISPLAYED DOUBLE EMULSION WITH ROUND DROPS THAT DO NOT APPEAR TO AGGREGATE. THE RHEOLOGICAL PROPERTIES ARE ALSO ASYMMETRIC: THE PI-CONTINUOUS BLEND SHOWED GEL-LIKE BEHAVIOR IN OSCILLATORY EXPERIMENTS, HIGH VISCOSITY AND STRONG VISCOSITY OVERSHOOTS IN CREEP EXPERIMENTS, ALL OF WHICH ARE LIKELY ATTRIBUTABLE TO DROP CLUSTERING, WHEREAS PDMS-CONTINUOUS BLENDS SHOWED LIQUID-LIKE BEHAVIOR, AND LOW VISCOSITY DUE TO DROPS COALESCENCE. WE CONSIDER THAT THE OBSERVED MORPHOLOGICAL AND RHEOLOGICAL ASYMMETRY IS ATTRIBUTABLE TO THE ASYMMETRY OF THE COMPATIBILIZER ARCHITECTURE ON THE TWO SIDES OF THE INTERFACE.

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APA: Copy

Nasrollah Gavgani, Jaber, Faramarzi Jolfaei, Amir, GOHARPEY, FATEMEH, Velankar, Sachin, & FOUDAZI, REZA. (2014). REACTIVE COMPATIBILIZATION OF POLYISOPRENE/POLYDIMETHYLSILOXANE INTERFACES. INTERNATIONAL SEMINAR ON POLYMER SCIENCE AND TECHNOLOGY. SID. https://sid.ir/paper/917806/en

Vancouver: Copy

Nasrollah Gavgani Jaber, Faramarzi Jolfaei Amir, GOHARPEY FATEMEH, Velankar Sachin, FOUDAZI REZA. REACTIVE COMPATIBILIZATION OF POLYISOPRENE/POLYDIMETHYLSILOXANE INTERFACES. 2014. Available from: https://sid.ir/paper/917806/en

IEEE: Copy

Jaber Nasrollah Gavgani, Amir Faramarzi Jolfaei, FATEMEH GOHARPEY, Sachin Velankar, and REZA FOUDAZI, “REACTIVE COMPATIBILIZATION OF POLYISOPRENE/POLYDIMETHYLSILOXANE INTERFACES,” presented at the INTERNATIONAL SEMINAR ON POLYMER SCIENCE AND TECHNOLOGY. 2014, [Online]. Available: https://sid.ir/paper/917806/en

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