Synthesis of polybutadiene nanoparticles by emulsion polymerization: The effect of electrolyte and initiator type on particle size and reaction kinetics

Abdollahi, Mahdi; Yousefi, Mohammad; Ghahramani, Maral; Ranjbar, Heidar; Najafi, Fardin Seyyed

doi:10.1007/s13726-016-0491-z

Cited by 3 publications

(1 citation statement)

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“…One-step batch emulsion polymerization technology produces submicron polybutadiene latex particles with narrow particle size distribution by controlling the ionic strength of the emulsion and interfacial tension between the polymer and reaction medium in the latex particles. [21][22][23] Pressure agglomeration technology operates by passing small sized particles of polybutadiene latex through a homogenization valve with a narrow gap under high pressure. The latex particles are torn under high-pressure mechanical shearing force, where the latex quickly loses pressure after leaving the homogenization valve, and linear molecules of the rubber unprotected by the emulsifier quickly entangle together.…”

Section: Introductionmentioning

confidence: 99%

Influence of construction method of submicron polybutadiene particles on transparent methacrylate-acrylonitrile-butadiene-styrene resin properties

Tang

et al. 2023

Journal of Thermoplastic Composite Materials

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Submicron polybutadiene particles were prepared using four different methods: one-step batch emulsion polymerization, pressure agglomeration, acid agglomeration, and polymer latex agglomeration. Core-shell elastomers were synthesized by grafting styrene and methyl methacrylate on polybutadiene particles. Transparent methacrylate-acrylonitrile-butadiene-styrene resin was prepared by blending the elastomers with methacrylate-styrene-acrylonitrile matrix resin synthesized by bulk polymerization. The effects of the construction method of submicron rubber particles on core-shell elastomer structure and composite properties were investigated. Additionally, the relationship between the rubber phase structure and composite properties was studied. The obtained results showed that the construction method significantly affected the size distribution and morphology of the submicron rubber particles. The rubber particles prepared by one-step batch emulsion polymerization were grafted easily, with 90.2% grafting efficiency of the corresponding core-shell elastomer. The grafting efficiency of the rubber particles prepared by acid agglomeration was only 69.4%. The former was most suitable as the toughening core of transparent Acrylonitrile-butadiene-styrene resin, and the transmittance and haze values of the composite were 90% and 2.4, respectively. Impact and tensile strengths were 185.6 J/m and 39 MPa, respectively. The acid agglomeration method generated submicron rubber particles more quickly, and the transmittance and haze of composite were 90% and 2.9, respectively. However, the impact and tensile strengths were reduced to 170.4 J/m and 31 MPa, respectively.

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Section: Introductionmentioning

confidence: 99%