ATRP Synthesis of Amphiphilic Random, Gradient, and Block Copolymers of 2-(Dimethylamino)ethyl Methacrylate andn-Butyl Methacrylate in Aqueous Media

2003 ◽  
Vol 4 (5) ◽  
pp. 1386-1393 ◽  
Author(s):  
Sang Beom Lee ◽  
Alan J. Russell ◽  
Krzysztof Matyjaszewski
Polymer ◽  
2006 ◽  
Vol 47 (14) ◽  
pp. 4905-4915 ◽  
Author(s):  
Philip Dimitrov ◽  
Alicja Utrata-Wesołek ◽  
Stanislav Rangelov ◽  
Wojciech Wałach ◽  
Barbara Trzebicka ◽  
...  

2019 ◽  
Vol 276 ◽  
pp. 47-56 ◽  
Author(s):  
Mehul Khimani ◽  
Shin-ichi Yusa ◽  
V.K. Aswal ◽  
P. Bahadur

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Tina Šmigovec Ljubič ◽  
David Pahovnik ◽  
Majda Žigon ◽  
Ema Žagar

The separation of a mixture of three poly(styrene-block-t-butyl methacrylate) copolymers (PS-b-PtBMA), consisting of polystyrene (PS) blocks of similar length andt-butyl methacrylate (PtBMA) blocks of different lengths, was performed using various chromatographic techniques, that is, a gradient liquid chromatography on reversed-phase (C18 and C8) and normal-phase columns, a liquid chromatography under critical conditions for polystyrene as well as a fully automated two-dimensional liquid chromatography that separates block copolymers by chemical composition in the first dimension and by molar mass in the second dimension. The results show that a partial separation of the mixture of PS-b-PtBMA copolymers can be achieved only by gradient liquid chromatography on reversed-phase columns. The coelution of the two block copolymers is ascribed to a much shorter PtBMA block length, compared to the PS block, as well as a small difference in the length of the PtBMA block in two of these copolymers, which was confirmed by SEC-MALS and NMR spectroscopy.


2019 ◽  
Vol 52 (12) ◽  
pp. 4475-4482 ◽  
Author(s):  
Jin-Seong Kim ◽  
Young Jun Lee ◽  
Jonathan P. Coote ◽  
Gila E. Stein ◽  
Bumjoon J. Kim

2018 ◽  
Vol 106 ◽  
pp. 249-256 ◽  
Author(s):  
Ilya E. Nifant'ev ◽  
Andrey V. Shlyakhtin ◽  
Vladimir V. Bagrov ◽  
Pavel D. Komarov ◽  
Alexander N. Tavtorkin ◽  
...  

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