Poly(methyl methacrylate) nanolatexes with high solid contents prepared by semi-continuous emulsion polymerization in the presence of oil-soluble initiators

Zhang, Youwei; He, Yi; Zhao, Ji

doi:10.1016/j.eurpolymj.2014.11.004

Cited by 9 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Examples include using an extremely low monomer feed rate to limit particle growth [13], water-soluble comonomers to enhance nucleation [14], high reaction temperatures [13,15], or oil-soluble initiators [16]. However, the use of chain transfer agents (CTA) has not been exploited yet.…”

Section: Introductionmentioning

confidence: 99%

Ultrafine nanolatexes made via monomer-starved semicontinuous emulsion polymerisation in the presence of a water-soluble chain transfer agent

Sajjadi

Chen

Jahanzad

2016

European Polymer Journal

View full text Add to dashboard Cite

a b s t r a c tIdeal chain transfer agents are usually water insoluble as they do not affect the kinetics of polymerisation reactions occurring in the water phase. Water-soluble chain transfer agents act non-ideally by easily crossing the water phase and affecting the kinetics of polymerisation including nucleation. In this research, a partially water-soluble chain transfer agent (CTA), 2-Butanethiol, was used in the monomer-starved semicontinuous emulsion polymerisation of styrene as a means to affect the kinetics of water phase and synthesise ultrafine nanolatexes. Batch emulsion polymerisations were also carried out for comparison. In the batch process, the termination of chain transferred radicals in the water phase was found to be quite dominant, resulting in the formation of large polymer particles with polydisperse molecular weights and slow rate of reaction. By contrast, for the semicontinuous process, the application of the CTA reduced the average size of particles, by enhancing the rate of nucleation via increasing the rate of radical entry into micelles, and provided a good controllability over molecular weight distribution as well as the rate of polymerisation.

show abstract

Section: Introductionmentioning

confidence: 99%

Ultrafine nanolatexes made via monomer-starved semicontinuous emulsion polymerisation in the presence of a water-soluble chain transfer agent

Sajjadi

Chen

Jahanzad

2016

European Polymer Journal

View full text Add to dashboard Cite

show abstract

“…Semicontinuous monomer-starved emulsion polymerization is an appealing method for producing nanolatexes with relatively low amount of surfactant [9][10][11][12][13][14]. Several investigators used a wide range of formulations or process variables in order to reduce the particle size.…”

Section: Introductionmentioning

confidence: 99%

Exploring the limits of particle size for nanolatexes produced via monomer-starved semicontinuous emulsion polymerization

Sajjadi

Chen

2015

European Polymer Journal

View full text Add to dashboard Cite

Synthesis of polystyrene latex via emulsion polymerization with poly(vinyl alcohol) as sole stabilizer

Lü

Liu

Luo

2017

J of Applied Polymer Sci

View full text Add to dashboard Cite

Compared with low molecular surfactants, poly(vinyl alcohol) (PVA) could afford latexes with particular tackiness as an important property for various applications. However, until now, except for some highly reactive monomers, most of monomers including styrene seldom use PVA as protective colloid in emulsion polymerization. In this work, we used oil‐soluble initiator, 2,2′‐azobisisobutyronitrile, to accelerate the copolymerization of styrene and divinyl benzene in PVA protected colloids and synthesize polystyrene (PS) latex within 50 min at 70 °C successfully. The reaction system could remain stable even at the monomer‐to‐water ratio as high as 1:4, and the polymerization in pseudo‐micelles or latex particles was always dominant. The adjustment of the size of the PS latex in the range from 70 to 100 nm was facilely achieved by changing the polymerization temperature, the addition of PVA, or the monomer‐to‐water ratio. This method was also exploited to synthesize poly(styrene‐co‐methyl methacrylate) and poly(styrene‐co‐4‐chlorostyrene) latexes, indicating prospects in applications with the advantages of high capacity and broad applicability. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45111.

show abstract

Poly(methyl methacrylate) nanolatexes with high solid contents prepared by semi-continuous emulsion polymerization in the presence of oil-soluble initiators

Cited by 9 publications

References 36 publications

Ultrafine nanolatexes made via monomer-starved semicontinuous emulsion polymerisation in the presence of a water-soluble chain transfer agent

Ultrafine nanolatexes made via monomer-starved semicontinuous emulsion polymerisation in the presence of a water-soluble chain transfer agent

Exploring the limits of particle size for nanolatexes produced via monomer-starved semicontinuous emulsion polymerization

Synthesis of polystyrene latex via emulsion polymerization with poly(vinyl alcohol) as sole stabilizer

Contact Info

Product

Resources

About