SYNTHESIS OF VINYL ACETATE-ETHYLENE COPOLYMER THROUGH BATCH EMULSION POLYMERIZATION, II: EFFECT OF BUFFER AND EMULSIFIER CONCENTRATION

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SALEHI MOBARAKEH H.; ROSTAMI M.R.; ISMAILIPOUR B.

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Journal: Iranian Journal of Polymer Science and Technology Year:2003 | Volume:16 | Issue:4 (ISSUE NO. 66) Page(s): 231-239

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Title

SYNTHESIS OF VINYL ACETATE-ETHYLENE COPOLYMER THROUGH BATCH EMULSION POLYMERIZATION, II: EFFECT OF BUFFER AND EMULSIFIER CONCENTRATION

Author(s)

SALEHI MOBARAKEH H. | ROSTAMI M.R. | ISMAILIPOUR B. | Issue Writer Certificate

Keywords

BATCH EMULSION COPOLYMERIZATIONQ4

VINYL ACETATE-ETHYLENEQ4

EMULSIFIER CONCENTRATIONQ4

BUFFERQ4

ETHYLENE CONTENTQ4

Abstract

Emulsion copolymerization of VINYL ACETATE-ETHYLENE is carried out in a pressure reactor. Control of parameters such as pressure, temperature, monomer concentration, etc., is essential because they affect final properties of the copolymers. In emulsion polymerization of VINYL ACETATE-ETHYLENE the aim is to obtain a polymer having substantial ETHYLENE CONTENT (15-20 wt%) with high vinyl acetate conversion, Increasing EMULSIFIER CONCENTRATION based on a mix emulsifier with protective colloid increases the viscosity of emulsion medium which in turn reduces the diffusion of monomers. Consequently, vinyl acetate conversion and ETHYLENE CONTENT were both decreased. Addition of BUFFER to the emulsion system maintained pH at a constant value which facilitated a constant rate of initiator decompositon during polymerization. As a result, monomer conversion and ETHYLENE CONTENT of the copolymers were decreased. Glass transition temperature of the copolymers have been also investigated.

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APA: Copy

SALEHI MOBARAKEH, H., ROSTAMI, M.R., & ISMAILIPOUR, B.. (2003). SYNTHESIS OF VINYL ACETATE-ETHYLENE COPOLYMER THROUGH BATCH EMULSION POLYMERIZATION, II: EFFECT OF BUFFER AND EMULSIFIER CONCENTRATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 16(4 (ISSUE NO. 66)), 231-239. SID. https://sid.ir/paper/6507/en

Vancouver: Copy

SALEHI MOBARAKEH H., ROSTAMI M.R., ISMAILIPOUR B.. SYNTHESIS OF VINYL ACETATE-ETHYLENE COPOLYMER THROUGH BATCH EMULSION POLYMERIZATION, II: EFFECT OF BUFFER AND EMULSIFIER CONCENTRATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2003;16(4 (ISSUE NO. 66)):231-239. Available from: https://sid.ir/paper/6507/en

IEEE: Copy

H. SALEHI MOBARAKEH, M.R. ROSTAMI, and B. ISMAILIPOUR, “SYNTHESIS OF VINYL ACETATE-ETHYLENE COPOLYMER THROUGH BATCH EMULSION POLYMERIZATION, II: EFFECT OF BUFFER AND EMULSIFIER CONCENTRATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 16, no. 4 (ISSUE NO. 66), pp. 231–239, 2003, [Online]. Available: https://sid.ir/paper/6507/en

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