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Comparative study of a variety of ATRP systems with high oxidation state metal catalyst system

✍ Scribed by Mohd Yusuf Khan; Zhigang Xue; Dan He; Seok Kyun Noh; Won Seok Lyoo

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 357 KB
Volume: 51
Category: Article
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2009.11.037

No coin nor oath required. For personal study only.

✦ Synopsis

MMA (methyl methacrylate) was polymerized in different ATRP systems using the different ligands of HMTETA (1, 1, 4, 7, 10, 10, hexamethyltriethylenetetraamine), TMEDA (N,N,N 0 ,N 0 -Tetramethylethylenediamine) with copper salts (CuBr/CuBr 2 ) and EBriB was used as an initiator in toluene at a reaction temperature of 80 C. Both conventional and a low catalyst to initiator ratios ranging from 1/1 to 0.01/1 were compared in this study. All four of the ATRP methods, such as normal, reverse, AGET and ATRP using a high oxidation state metal complex without any additives, were evaluated at different conditions. The ATRP using a high oxidation state metal system in the absence of a conventional radical initiator like AIBN, which is used in reverse ATRP, or reducing agents such as Sn (EH) 2 in AGET ATRP was a better controlled system in terms of both the catalytic activity and controllability (PDI w 1.2).

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