Department of Chemistry, University of Warwick, CV4 7AL, Coventry, UK.
Macromol Rapid Commun. 2014 May;35(10):965-70. doi: 10.1002/marc.201400024. Epub 2014 Mar 7.
The polymerisation of N-acryloylmorpholine in water is reported utilising Cu(0)-mediated living radical polymerisation (SET-LRP). The inherent instability of [Cu(I) (Me6-Tren)Br] in aqueous solution is exploited via rapid disproportionation to prepare Cu(0) particles and [Cu(II) (Me6-Tren)Br2 ] in situ prior to addition of monomer and initiator. Quantitative conversion is attained within 30 min for various degrees of polymerisation (DPn = 20-640) with SEC showing symmetrical narrow molecular weight distributions (Đ < 1.18) in all cases. Optimised conditions are subsequently applied for the preparation of a diblock copolymer poly(NIPAm)-b-(N-acryloylmorpholine), illustrating the versatility of this approach.
本文报道了利用 Cu(0)-介导的活性自由基聚合（SET-LRP）在水中聚合 N-丙烯酰吗啉。通过快速歧化反应制备 Cu(0)颗粒和[Cu(II)(Me6-Tren)Br2]，利用[Cu(I)(Me6-Tren)Br]在水溶液中的不稳定性，原位制备 Cu(0)颗粒和[Cu(II)(Me6-Tren)Br2]，然后加入单体和引发剂。在各种聚合度（DPn=20-640）下，30 分钟内即可定量转化，SEC 显示所有情况下的分子量分布均对称且较窄（Đ < 1.18）。随后优化条件用于制备两亲性嵌段共聚物聚（NIPAm）-b-（N-丙烯酰吗啉），说明了该方法的多功能性。
