Flash Latex Production in a Continuous Helical Photoreactor: Releasing the Brake Pedal on Acrylate Chain Radical Polymerization | Zendy

Chemtob Abraham | Zendy; Lobry Emeline | Zendy; Rannée Agnès | Zendy; Jasinski Florent | Zendy; Penconi Marta | Zendy; Oliveros Esther | Zendy; Braun André M. | Zendy; Criqui Adrien | Zendy

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Flash Latex Production in a Continuous Helical Photoreactor: Releasing the Brake Pedal on Acrylate Chain Radical Polymerization

Author(s) -

Chemtob Abraham,

Lobry Emeline,

Rannée Agnès,

Jasinski Florent,

Penconi Marta,

Oliveros Esther,

Braun André M.,

Criqui Adrien

Publication year - 2016

Publication title -

macromolecular reaction engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.37

H-Index - 32

eISSN - 1862-8338

pISSN - 1862-832X

DOI - 10.1002/mren.201500060

Subject(s) - photopolymer , photoinitiator , acrylate , monomer , methacrylate , materials science , polymerization , polymer chemistry , copolymer , radical polymerization , chemical engineering , photochemistry , chemistry , polymer , composite material , engineering

The continuous photopolymerization of acrylate and methacrylate monomer miniemulsions (25% solids content) is investigated at room temperature in a compact helix minireactor. Using n‐butyl acrylate, the process yields 95% conversion after only 27 s residence time, and gel‐free high‐molecular‐weight products. Under optimized conditions, a 25‐fold increase in efficiency is obtained when compared to a batch photopolymerization. The reaction set‐up offers a frugal process because of moderate irradiance (2.6 mW cm −2 ), photoinitiator concentration (0.75 wt%), and low‐power UV‐A fluorescent lamp.

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