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Suspension polymerization is a heterogeneous radical polymerization process that uses mechanical agitation to mix a monomer or mixture of monomers in a liquid phase, such as water, while the monomers polymerize, forming spheres of polymer. The monomer droplets (size of the order 10-1000 μm) are suspended in the liquid phase. The individual monomer droplets can be considered as undergoing bulk polymerization. The liquid phase outside these droplets help in better conduction of heat and thus tempering the increase in temperature.

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  • Suspenzní polymerizace (cs)
  • Suspensionspolymerisation (de)
  • Polimerización en suspensión (es)
  • Polimerizzazione in sospensione (it)
  • 懸濁重合 (ja)
  • Suspension polymerization (en)
rdfs:comment
  • Suspenzní polymerizace je druh radikálové polymerizace, při které vzniká polymer z monomeru ve fázi, která nerozpouští monomer ani polymer. Využívá se například k výrobě polyvinylchloridu, polystyrenu a polymethylmethakrylátu. (cs)
  • Suspensionspolymerisation ist ein Verfahren der Polymerisation, bei der ein in Wasser unlösliches Monomer in Wasser dispergiert wird. Es wird ein Initiator verwendet, der bevorzugt im Monomer löslich ist. Die Reaktion findet dann in den Monomertröpfchen statt und es bildet sich eine Suspension des Polymers. Als Produkt erhält man meist „Perlen“, daher ist auch das Wort Perlpolymerisation in Gebrauch. Zumeist handelt es sich um eine radikalische Polymerisation, aus der Polymerpartikel mit einer verhältnismäßig breiten Teilchengrößeverteilung hervorgehen. (de)
  • 懸濁重合(けんだくじゅうごう、suspension polymerization)とは、モノマーと溶媒の水とを機械的に撹拌し、懸濁させて行う重合方法である。小さな粒状のきれいなポリマーが生成することからビーズ重合(bead polymerization)、粒状重合(granular polymerization)パール重合(pearl polymerization)とも呼ばれる。塩などの吸水性ポリマーの合成に使われる。 モノマーに可溶なラジカル発生剤が重合開始のために主に用いられる。 それぞれの粒の中で塊状重合が起こっている状態に近いので、重合速度は同じ仕込みの場合の塊状重合のそれに近いが、粒内部のラジカルが粒の外部へ脱出したり、脱出したラジカルや外水相中で発生したラジカルが粒の内部に侵入することによって、塊状重合とは異なる重合速度となる場合もある。 (ja)
  • La polimerizzazione in sospensione è una polimerizzazione radicalica eterogenea che ricorre all'agitazione meccanica per mescolare un monomero o una miscela di monomeri in una fase liquida, come l'acqua, mentre i monomeri polimerizzano, formando piccole sfere o agglomerati polimerici. Questo processo è sfruttato industrialmente per la produzione di svariate resine commerciali, tipo il polivinil cloruro (PVC), e vari tipi di polistirene (come il polistirene antiurto). (it)
  • La polimerización en suspensión es un proceso heterogéneo de polimerización por radicales libres que utiliza agitación mecánica para mezclar un monómero, o una mezcla de monómeros, en una fase líquida, como el agua, mientras que los monómeros polimerizan, formando esferas de polímero. (es)
  • Suspension polymerization is a heterogeneous radical polymerization process that uses mechanical agitation to mix a monomer or mixture of monomers in a liquid phase, such as water, while the monomers polymerize, forming spheres of polymer. The monomer droplets (size of the order 10-1000 μm) are suspended in the liquid phase. The individual monomer droplets can be considered as undergoing bulk polymerization. The liquid phase outside these droplets help in better conduction of heat and thus tempering the increase in temperature. (en)
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  • Polymerization in which polymer is formed in monomer, or monomer-solvent droplets (en)
  • diameters usually exceeding 10 μm. (en)
  • in a continuous phase that is a nonsolvent for both the monomer and the formed polymer. Note 1: In suspension polymerization, the initiator is located mainly in the monomer phase. Note 2: Monomer or monomer-solvent droplets in suspension polymerization have (en)
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  • IUPAC definition (en)
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  • Suspenzní polymerizace je druh radikálové polymerizace, při které vzniká polymer z monomeru ve fázi, která nerozpouští monomer ani polymer. Využívá se například k výrobě polyvinylchloridu, polystyrenu a polymethylmethakrylátu. (cs)
  • Suspensionspolymerisation ist ein Verfahren der Polymerisation, bei der ein in Wasser unlösliches Monomer in Wasser dispergiert wird. Es wird ein Initiator verwendet, der bevorzugt im Monomer löslich ist. Die Reaktion findet dann in den Monomertröpfchen statt und es bildet sich eine Suspension des Polymers. Als Produkt erhält man meist „Perlen“, daher ist auch das Wort Perlpolymerisation in Gebrauch. Zumeist handelt es sich um eine radikalische Polymerisation, aus der Polymerpartikel mit einer verhältnismäßig breiten Teilchengrößeverteilung hervorgehen. (de)
  • La polimerización en suspensión es un proceso heterogéneo de polimerización por radicales libres que utiliza agitación mecánica para mezclar un monómero, o una mezcla de monómeros, en una fase líquida, como el agua, mientras que los monómeros polimerizan, formando esferas de polímero. Este proceso se utiliza en la producción de muchas resinas comerciales, incluido el cloruro de polivinilo (PVC), un plástico ampliamente utilizado, resinas de estireno que incluyen poliestireno, poliestireno expandido y poliestireno de alto impacto, así como poli (estireno-acrilonitrilo) y poli(metacrilato de metilo).​ (es)
  • Suspension polymerization is a heterogeneous radical polymerization process that uses mechanical agitation to mix a monomer or mixture of monomers in a liquid phase, such as water, while the monomers polymerize, forming spheres of polymer. The monomer droplets (size of the order 10-1000 μm) are suspended in the liquid phase. The individual monomer droplets can be considered as undergoing bulk polymerization. The liquid phase outside these droplets help in better conduction of heat and thus tempering the increase in temperature. While choosing a liquid phase for suspension polymerization, low viscosity, high thermal conductivity and low temperature variation of viscosity are generally preferred. The primary advantage of suspension polymerization over other types of polymerization is that a higher degree of polymerization can be achieved without monomer boil-off. During this process, there is often a possibility of these monomer droplets to stick to each other and cause creaming in the solution. To prevent this, the mixture is carefully stirred or a protective colloid is often added. One of the most common suspending agents is polyvinyl alcohol (PVA). Usually, the monomer conversion is completed unlike in bulk polymerization, and the initiator used in this is monomer-soluble. This process is used in the production of many commercial resins, including polyvinyl chloride (PVC), a widely used plastic, styrene resins including polystyrene, expanded polystyrene, and high-impact polystyrene, as well as poly(styrene-acrylonitrile) and poly(methyl methacrylate). (en)
  • 懸濁重合(けんだくじゅうごう、suspension polymerization)とは、モノマーと溶媒の水とを機械的に撹拌し、懸濁させて行う重合方法である。小さな粒状のきれいなポリマーが生成することからビーズ重合(bead polymerization)、粒状重合(granular polymerization)パール重合(pearl polymerization)とも呼ばれる。塩などの吸水性ポリマーの合成に使われる。 モノマーに可溶なラジカル発生剤が重合開始のために主に用いられる。 それぞれの粒の中で塊状重合が起こっている状態に近いので、重合速度は同じ仕込みの場合の塊状重合のそれに近いが、粒内部のラジカルが粒の外部へ脱出したり、脱出したラジカルや外水相中で発生したラジカルが粒の内部に侵入することによって、塊状重合とは異なる重合速度となる場合もある。 (ja)
  • La polimerizzazione in sospensione è una polimerizzazione radicalica eterogenea che ricorre all'agitazione meccanica per mescolare un monomero o una miscela di monomeri in una fase liquida, come l'acqua, mentre i monomeri polimerizzano, formando piccole sfere o agglomerati polimerici. Questo processo è sfruttato industrialmente per la produzione di svariate resine commerciali, tipo il polivinil cloruro (PVC), e vari tipi di polistirene (come il polistirene antiurto). (it)
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