کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5186940 | 1381117 | 2010 | 6 صفحه PDF | دانلود رایگان |
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,Nâ²,Nâ²-Tetramethylethylenediamine) with copper salts (CuBr/CuBr2) 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 â¼Â 1.2).
Journal: Polymer - Volume 51, Issue 1, 6 January 2010, Pages 69-74