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    AI Overview
    Styrene-maleic anhydride copolymer | Thermoplastic ...
    Styrene Maleic Anhydride (SMA) copolymer is a high-performance, rigid, heat-resistant thermoplastic resin. Formed by copolymerizing styrene and maleic anhydride, it is widely used as a compatibilizer to improve blending in plastics (ABS, PVC) and as a binder or dispersant in coatings, adhesives, and inks, offering excellent dimensional stability. 
    Key Characteristics and Applications 
    • Properties: SMA is known for its high glass transition temperature, low melt viscosity, and excellent reactivity, particularly with primary amines and hydroxyl groups.
    • Engineering Plastics: It acts as a key compatibilizer and modifier to increase heat distortion temperatures in polymer alloys.
    • Coatings & Inks: Used for increasing gloss, surface hardness, adhesion, and water resistance in varnishes, paper coatings, and water-based inks.
    • Industrial Applications: It acts as a pigment dispersant, emulsifier for floor polishes, and a curing agent for epoxy resins.
    • Specialty Applications: SMA is used to solubilize membrane proteins in biotechnology and as a coating for biomedical devices due to its biocompatibility. 
    Manufacturing and Composition 
    • Synthesis: Produced via free-radical polymerization of styrene and maleic anhydride.
    • Ratio: Typically, the styrene-to-maleic anhydride ratio ranges from 1:1 to 4:1.
    • Structure: Known as a random copolymer, but the alternating structure is often favored for high-performance applications. 
    • Method for the manufacture of styrene maleic anhydride copolymers
      Styrene maleic anhydride resins can be used to improve properties of formulations, such as gloss aspect, hardness, colour developm...
      Google Patents
    • Styrene-maleic anhydride copolymer | Thermoplastic, Synthesis, Polymerization | Britannica
      Styrene-maleic anhydride is a thermoplastic resin produced by the copolymerization of styrene and maleic anhydride. It is a rigid,
      Britannica
    • Styrene Maleic Anhydride Copolymer: A Key Material in Plastic ...
      Feb 10, 2025 — Styrene Maleic Anhydride Copolymer 's high purity and biocompatibility make it suitable for use in medical devices and equipment. ...
      www.yangchentech.com
    Show all
    • Method for the manufacture of styrene maleic anhydride copolymers
      Styrene maleic anhydride resins can be used to improve properties of formulations, such as gloss aspect, hardness, colour developm...
      Google Patents
    • Styrene-maleic anhydride copolymer | Thermoplastic, Synthesis, Polymerization | Britannica
      Styrene-maleic anhydride is a thermoplastic resin produced by the copolymerization of styrene and maleic anhydride. It is a rigid,
      Britannica
    • Styrene Maleic Anhydride Copolymer: A Key Material in Plastic ...
      Feb 10, 2025 — Styrene Maleic Anhydride Copolymer 's high purity and biocompatibility make it suitable for use in medical devices and equipment. ...
      www.yangchentech.com
    • STYRENE MALEIC ANHYDRIDE COPOLYMER | 9011-13-6
      Dec 17, 2025 — STYRENE MALEIC ANHYDRIDE COPOLYMER is a thermoplastic resin made by copolymerising styrene and maleic anhydride. It is a hard, hea...
      ChemicalBook
    • CN102250273B - A kind of preparation method of styrene-maleic anhydride random copolymer - Google Patents
      One method for preparing styrene-maleic anhydride random copolymers involves the following steps: 1. Adding a monomer maleic anhyd...
      Google Patents
    • Styrene maleic anhydride (SMA) is an excellent compatibilizer for ...
      Styrene maleic anhydride (SMA) is known as a polymer that enhances heat deflection of polymers like PVC that are amorphous. SMA ca...
      Plastemart
    • What is the application of styrene maleic anhydride copolymer
      Jun 26, 2025 — The field of industry and materials * Coating and ink additives. Function: Styrene maleic anhydride copolymer as a resin modifier ...
      Unilong Industry
    • SMA - Polychem Limited
      SMA. ... FEATURES: Styrene Maleic Anhydride is a low molecular weight co-polymer of Styrene & Maleic anhydride. Its main applicati...
      Polychem Limited
    • Styrene Maleic Anhydride Copolymer - ScienceDirect.com
      Styrene maleic anhydride (SMA) is defined as a copolymer resulting from the copolymerization of styrene with maleic anhydride, cha...
      ScienceDirect.com
    • A Review of Styrene-Maleic Anhydride Copolymers
      Feb 24, 2022 — Although styrene-maleic anhydride copolymer (SMA) is a new type of polymer material with excellent performance and low price, its ...
      COACE Chemical Company Limited
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    Web results

    Styrene maleic anhydride


    Wikipedia
    https://en.wikipedia.org › wiki › Styrene_maleic_anhyd...
    Wikipedia
    https://en.wikipedia.org › wiki › Styrene_maleic_anhyd...
    Styrene maleic anhydride (SMA or SMAnh) is a synthetic polymer that is built-up of styrene and maleic anhydride monomers.Read more

    STYRENE/MALEIC ANHYDRIDE COPOLYMER AldrichCPR


    Sigma-Aldrich
    https://www.sigmaaldrich.com › product › aldrich
    Sigma-Aldrich
    https://www.sigmaaldrich.com › product › aldrich
    STYRENE/MALEIC ANHYDRIDE COPOLYMER AldrichCPR; CAS Number: 9011-13-6; Linear Formula: C12H10O3 at Sigma-Aldrich.

    Styrene/maleic anhydride copolymer, partial methyl ester


    Scientific Polymer
    https://scipoly.com › Shop › Polymers
    Scientific Polymer
    https://scipoly.com › Shop › Polymers
    Styrene/maleic anhydride copolymer, partial methyl ester. Catalog #: 049. Size: 250g. $25.00.Read more
    $25.00 · In stock

    A New Styrene Maleic Anhydride Copolymer Additive


    PCI Magazine
    https://www.pcimag.com › articles › 104879-a-new-styr...
    PCI Magazine
    https://www.pcimag.com › articles › 104879-a-new-styr...
    Jun 6, 2018 — For many years, styrene maleic anhydride (SMA) copolymers have been successfully used as both dispersants for water-based pigment ...

    Styrene maleic acid anhydride copolymer (SMA) for the ...


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by S Yamamoto · 2013 · Cited by 18 — Styrene maleic acid copolymer (SMA) is widely used in various industrial applications, such as adhesives and coatings, because of its good durability and ...Read more

    Poly(styrene/maleic anhydride) [67:33], MW ...


    Polysciences
    https://polysciences.com › products › polystyrenemaleic-...
    Polysciences
    https://polysciences.com › products › polystyrenemaleic-...
    Poly(styrene-co-maleic anhydride) (SMA) is an amphiphilic copolymer with reactive anhydride groups that enable functionalization.Read more
    6-day delivery

    Styrene maleic anhydride (SMA) is an excellent ...


    Plastemart
    https://www.plastemart.com › plastic-technical-articles
    Plastemart
    https://www.plastemart.com › plastic-technical-articles
    Styrene maleic anhydride (SMA) compounds have long been used as moulding resins in the automotive, packaging, and building and construction industries, and ...Read more

    Method for the manufacture of styrene maleic anhydride ...


    Google Patents
    https://patents.google.com › patent
    Google Patents
    https://patents.google.com › patent
    Styrene maleic anhydride resins can be used to improve properties of formulations, such as gloss aspect, hardness, colour development, adhesion, stability and ...Read more

    Styrene-maleic anhydride copolymer


    Britannica
    https://www.britannica.com › Science › Chemistry
    Britannica
    https://www.britannica.com › Science › Chemistry
    A thermoplastic resin produced by the copolymerization of styrene and maleic anhydride. A rigid, heat-resistant, and chemical-resistant plastic.Read more

    Styrene Maleic Anhydride Copolymer


    yangchentech.com
    https://www.yangchentech.com › styrene-maleic-anhydri...
    yangchentech.com
    https://www.yangchentech.com › styrene-maleic-anhydri...
    Styrene Maleic Anhydride Copolymer (SMA) manufactured by Yangchen Tech is a high-performance thermoplastic copolymer derived from the polymerization of styrene ...Read more
    styrene maleic anhydride resin from www.yangchentech.com

    Scholarly articles for styrene maleic anhydride resin

    … of styrene–maleic anhydride random copolymer and … - ‎Liang - Cited by 29
    … of styrene‐maleic anhydride copolymers (SMA resins) … - ‎Nzudie - Cited by 15
    … styrene–maleic anhydride copolymers and application … - ‎Zhao - Cited by 26
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