Étude de copolymères greffés ABS (Acrylonitrile‐Butadiène‐Styrène). III. Vitesse de polymérisation dans la réaction de greffage – Retardation – Solvatation préférentielle par les promoteurs

Locatelli, Par Jean‐Louis; Riess, et Gèrard

doi:10.1002/apmc.1973.050320108

Cited by 19 publications

(1 citation statement)

References 15 publications

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“…It is well known that the mechanical properties of ABS resin are greatly affected by the sizes, structures, dispersion state and relative amounts of rubber particles 1, 18, 19. In the experiments carried out, PB or poly(styrene‐ co ‐butadiene) (SBR) was grafted in the synthesizing process using the emulsion in situ suspension polymerization method and the particles obtained were used to prepare the ABS resins.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of ABS resin using in situ transferring from emulsion to suspension polymerization

Zhang

Luan

Lin

et al. 2006

Polymer International

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A novel approach based on an emulsion in situ suspension polymerization process for synthesizing poly(acrylonitrile–butadiene–styrene) (ABS) resin is reported. Experimental results show that the reaction system can be transformed from an emulsion state to a suspension polymerization state steadily with the content of polybutadiene (PB) in the range 0–15 wt% in ABS resin. When PB is replaced by poly(styrene‐co‐butadiene) with the content of rubber particles being kept below 20 wt%, the emulsion system can be easily transferred to the suspension polymerization state through a process of latex coagulation in the forward direction, which means that the emulsion solution was dripped slowly into the suspension reaction system in the presence of coagulating agent. The dispersion status of the rubber particles in the ABS resin was studied using transmission electron microscopy, which indicated that the rubber particles were in a dispersed state in a continuous matrix of poly(styrene‐co‐acrylonitrile) when the content of rubber particles was below 20 wt%. The mechanical properties of the ABS resins obtained are as follows: elongation at break, 9.4–45.7%; yield tensile strength, 35.1–42.2 MPa; impact strength, 98.2–116.3 J m−1. Copyright © 2006 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of ABS resin using in situ transferring from emulsion to suspension polymerization

Zhang

Luan

Lin

et al. 2006

Polymer International

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Acrylonitrile Polymers, ABS Resins

Kulich¹,

Pace²,

Fritch³

et al. 2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Acrylonitrile–butadiene–styrene (ABS) polymers are composed of elastomer dispersed as a grafted particulate phase in a thermoplastic matrix of styrene and acrylonitrile copolymer (SAN). The presence of SAN grafted onto the elastomeric component, usually polybutadiene or a butadiene copolymer, compatabilizes the rubber with the SAN component. Property advantages provided by this graft terpolymer include excellent toughness, good dimensional stability, good processibility, and chemical resistance. The system is structurally complex. This allows considerable versatility in the tailoring of properties to meet specific product requirements. Consequently, research and development in ABS systems is active. Numerous grades of ABS are available, including new alloys and specialty grades for high heat, flaming‐retardant, or static dissipative product requirements. Good chemical resistance combined with the relatively low water absorptivity \documentclass{article}\usepackage{amssymb}\pagestyle{empty}\begin{document}${{(}{\rm{<}}1{\%}{)}}$\end{document} results in high resistance to staining agents. Antioxidants substantially improve oxidative stability. Applications involving extended outdoor exposure require the use of stabilizing additives, pigments, and protective coatings. In manufacturing, grafting is achieved by the free‐radical copolymerization of styrene and acrylonitrile monomers. The three commercial processes for manufacturing ABS are emulsion, mass, and mass‐suspension. ABS is sold as an unpigmented product for on‐line coloring using color concentrates during molding, or as precolored pellets. ABS can be processed by compression and injection molding, extrusion, calendering, and blow‐molding. Post‐processing operations include cold forming, painting, and adhesive bonding. As a “bridge” polymer between commodity plastics and higher performance engineering thermoplastics, ABS has become the largest selling engineering thermoplastic.

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Acrylonitrile–Butadiene–Styrene (ABS) Polymers

Kulich¹,

Gaggar²,

Lowry³

et al. 2003

Kirk-Othmer Encyclopedia of Chemical Technology

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Acrylonitrile–butadiene–styrene (ABS) polymers are composed of elastomer dispersed as a grafted particulate phase in a thermoplastic matrix of styrene and acrylonitrile copolymer (SAN). The presence of SAN grafted onto the elastomeric component, usually polybutadiene or a butadiene copolymer, compatabilizes the rubber with the SAN component. Property advantages provided by this graft terpolymer include excellent toughness, good dimensional stability, good processibility, and chemical resistance. The system is structurally complex. This allows considerable versatility in the tailoring of properties to meet specific product requirements. Consequently, research and development in ABS systems is active. Numerous grades of ABS are available, including new alloys and specialty grades for high heat, flaming‐retardant, or static dissipative product requirements. Good chemical resistance combined with the relatively low water absorptivity \documentclass{article}\usepackage{amssymb}\pagestyle{empty}\begin{document}${(<1\%)}$\end{document} results in high resistance to staining agents. Antioxidants substantially improve oxidative stability. Applications involving extended outdoor exposure require the use of stabilizing additives, pigments, and protective coatings. In manufacturing, grafting is achieved by the free‐radical copolymerization of styrene and acrylonitrile monomers. The commercial processes for manufacturing ABS are discussed. ABS is sold as an unpigmented product for on‐line coloring using color concentrates during molding, or as precolored pellets. ABS can be processed by compression and injection molding, extrusion, calendering, and blow‐molding. Post‐processing operations include cold forming, painting, and adhesive bonding. As a “bridge” polymer between commodity plastics and higher performance engineering thermoplastics, ABS has become the largest selling engineering thermoplastic.

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Étude de copolymères greffés ABS (Acrylonitrile‐Butadiène‐Styrène). III. Vitesse de polymérisation dans la réaction de greffage – Retardation – Solvatation préférentielle par les promoteurs

Cited by 19 publications

References 15 publications

Synthesis and characterization of ABS resin using in situ transferring from emulsion to suspension polymerization

Synthesis and characterization of ABS resin using in situ transferring from emulsion to suspension polymerization

Acrylonitrile Polymers, ABS Resins

Acrylonitrile–Butadiene–Styrene (ABS) Polymers

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