Transition Metal Catalyst Separation and Recycling: Recent Progress in TPSC-based ATRP

Author(s): Bingjie Zhang , Lifen Zhang* , Zhenping Cheng* , Xiulin Zhu* .

Journal Name: Current Organic Chemistry

Volume 22 , Issue 13 , 2018

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Abstract:

Transition metal-mediated atom transfer radical polymerization (ATRP) is well known as one of successful reversible deactivation radical polymerizations for synthesizing various designable structures. However, the resultant polymers are usually contaminated or colored by large amounts of metal catalyst, which does not facilitate its industrialization. How to efficiently separate and recycle the metal catalyst has triggered lots of interest in green chemistry and ATRP. In this review, we mainly focus on a recyclable liquid/liquid thermo-regulated phase separable catalysis (TPSC) strategy applied in ATRP, which provides a facile and efficient method combining homogeneous reaction with heterogeneous separation just by simply changing temperature. TPSC-based ATRP systems include but not limit to the following systems: fluorous biphasic system, lower alcohol/alkane biphasic system, poly(ethylene glycol) (PEG) biphasic system and thermo-regulated ionic liquids biphasic system and so on.

Keywords: Transition metal catalyst, thermo-regulated phase separable catalysis (TPSC), catalyst separation, catalyst recycling, Atom Transfer Radical Polymerization (ATRP).

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Article Details

VOLUME: 22
ISSUE: 13
Year: 2018
Page: [1256 - 1263]
Pages: 8
DOI: 10.2174/1385272822666180430125417
Price: $58

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