Xu Youyong, Walther Andreas, Müller Axel H E
Makromolekulare Chemie II and Bayreuther Zentrum für Kolloide und Grenzflächen, Universität Bayreuth, D-95440 Bayreuth, Germany.
Macromol Rapid Commun. 2010 Aug 17;31(16):1462-6. doi: 10.1002/marc.201000157. Epub 2010 Jul 12.
A supramolecular complex between an ionic monomer 3-sulfopropyl methacrylate (SPMAK) and crown ether 18-crown-6 (18C6) has been employed to prepare a strong anionic cylindrical polyelectrolyte brush poly(potassium 3-sulfopropyl methacrylate) (PSPMAK) by atom transfer radical polymerization (ATRP) in polar solvent dimethyl sulfoxide (DMSO). This strategy solved the problem of the solubilities of the incompatible hydrophobic poly-initiator and hydrophilic ionic monomer. The formation of the PSPMAK brush is well proven by (1) H NMR, aqueous gel permeation chromatography (GPC), dynamic light scattering (DLS), static light scattering (SLS), atomic force microscopy (AFM), and cryogenic transmission electron microscopy (cryo-TEM) measurements. Cleavage of the side chains and further analysis reveal that the initiating efficiency of the polymerization is as low as 0.35.
离子单体甲基丙烯酸3-磺丙酯（SPMAK）与冠醚18-冠-6（18C6）之间的超分子复合物已被用于通过原子转移自由基聚合（ATRP）在极性溶剂二甲基亚砜（DMSO）中制备强阴离子圆柱形聚电解质刷聚（甲基丙烯酸3-磺丙酯钾）（PSPMAK）。该策略解决了不相容的疏水性多引发剂和亲水性离子单体的溶解性问题。通过（1）H NMR、水性凝胶渗透色谱（GPC）、动态光散射（DLS）、静态光散射（SLS）、原子力显微镜（AFM）和低温透射电子显微镜（cryo-TEM）测量充分证明了PSPMAK刷的形成。侧链的裂解及进一步分析表明聚合的引发效率低至0.35。
