Branching in RAFT Miniemulsion Copolymerization of Styrene/Triethylene Glycol Dimethacrylate and Control of Branching Density Distribution | Zendy

Li Xiaohui | Zendy; Wang WenJun | Zendy; Li BoGeng | Zendy; Zhu Shiping | Zendy

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Branching in RAFT Miniemulsion Copolymerization of Styrene/Triethylene Glycol Dimethacrylate and Control of Branching Density Distribution

Author(s) -

Li Xiaohui,

Wang WenJun,

Li BoGeng,

Zhu Shiping

Publication year - 2015

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.201400046

Subject(s) - miniemulsion , triethylene glycol , raft , branching (polymer chemistry) , copolymer , polymer chemistry , chain transfer , styrene , monomer , materials science , molar mass distribution , polymerization , radical polymerization , polymer , composite material

This work reported branching studies in reversible addition‐fragmentation chain transfer (RAFT) miniemulsion copolymerization of styrene and triethylene glycol dimethacrylate (TEGDMA), and control of branching density distribution using a model‐based computer‐programed monomer feeding strategy. Highly branched polystyrenes (PS) were produced with small amount of TEGDMA. The branching density experienced drifting in a batch operation. A semi‐batch kinetic model by combining the kinetic model for RAFT miniemulsion copolymerization with a semi‐batch reactor model was used to design the monomer feeding rate profiles for targeted branching density distributions. A series of hyperbranched PSs with the designed branching density distributions were synthesized.

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