In this study polystyrene and polystyrene-block-poly (methyl methacrylate-co-styrene) were synthesized by atom transfer radical polymerization (ATRP) method using a new synthesized ligand, N-benzyl-2-(dodecylthio)-N-(2-(dodecylthio)ethyl)ethanamine (SNS), which is tridentate ligand with mixed donor atoms. To overcome the poor initiation efficiency of polystyrene during chain extension with methyl methacrylate, use was made of halogen exchange and a small amount (10%) of styrene in the second block of the copolymer. The use of the aforementioned yielded well-defined polymers with controlled high molecular weights and narrow molecular weight distributions (M_n = 52,200, PDI = 1.45). The synthesized polymers were carefully characterized via FT-IR, ¹H NMR, ¹³C NMR, and GPC techniques. Finally, the synthesized polystyrene and block copolymer were compared in terms of water contact angle.

在这项研究中，聚苯乙烯和聚苯乙烯嵌段聚（甲基丙烯酸甲酯-共苯乙烯）是通过原子转移自由基聚合（ATRP）方法，使用一种新的合成配体N-苄基-2-（十二烷基硫基）-N-（2- （十二烷基硫基）乙基）乙胺（SNS），是具​​有混合供体原子的三齿配体。为了克服在用甲基丙烯酸甲酯进行扩链过程中聚苯乙烯的引发效率差，在共聚物的第二个嵌段中使用了卤素交换和少量（10％）的苯乙烯。使用上述得到的定义明确的聚合物，该聚合物具有受控的高分子量和窄分子量分布（M _n  = 52,200，PDI = 1.45）。合成的聚合物通过FT-IR，¹ H NMR，¹³仔细表征13 C NMR和GPC技术。最后，比较了合成的聚苯乙烯和嵌段共聚物的水接触角。