Emulsion polymerisation of MMA employing a chain transfer agent of low environmental impact:  ISO ‐octyl‐3‐mercaptopropionate | Zendy

Ronco Ludmila I. | Zendy; Minari Roque J. | Zendy; Cian Lorena | Zendy; Vega Jorge R. | Zendy; Gugliotta Luis M. | Zendy

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Emulsion polymerisation of MMA employing a chain transfer agent of low environmental impact: ISO ‐octyl‐3‐mercaptopropionate

Author(s) -

Ronco Ludmila I.,

Minari Roque J.,

Cian Lorena,

Vega Jorge R.,

Gugliotta Luis M.

Publication year - 2013

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.21777

Subject(s) - methyl methacrylate , chain transfer , transfer agent , emulsion polymerization , reactivity (psychology) , radical , emulsion , polymerization , polymer chemistry , chemistry , kinetics , radical polymerization , chemical engineering , organic chemistry , polymer , medicine , physics , alternative medicine , pathology , quantum mechanics , engineering

The unseeded batch‐emulsion polymerisation of methyl methacrylate (MMA) was investigated using the chain transfer agent iso ‐octyl‐3‐mercaptopropionate ( i OMP), which exhibits a low environmental impact. The commercial i OMP is a mixture of over 10 isomers that proved adequate to control the molecular weights of poly(methyl methacrylate) with a decreasing evolution of both the number‐ and weight‐average molecular weights along the reactions. The i OMP also affects the polymerisation kinetics as a consequence of the lower reactivity of the i OMP radicals with respect to the MMA‐ended radicals. Experimental results were interpreted with the help of a first principles mathematical model. © 2013 Canadian Society for Chemical Engineering

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