随着纤维素应用领域的扩大,对纤维素及其衍生物的接枝改性以提高其适用性变得尤其重要。原子转移自由基聚合(Atom Transfer Radical Polymerization,ATRP)法用于纤维素接枝改性,由于其可控性、活性,且能引入多种接枝链段赋予纤维素不同...随着纤维素应用领域的扩大,对纤维素及其衍生物的接枝改性以提高其适用性变得尤其重要。原子转移自由基聚合(Atom Transfer Radical Polymerization,ATRP)法用于纤维素接枝改性,由于其可控性、活性,且能引入多种接枝链段赋予纤维素不同的性能从而扩大纤维素的应用范围,该方法已得到广泛的关注和研究。本文综述了近十年关于ATRP法用于纤维素接枝改性方面的报道,以不同的纤维素基材为分类,描述多种乙烯基单体在纤维素上进行ATRP接枝共聚的过程,重点介绍纤维素接枝共聚物的新性能以及在不同领域的应用。展开更多
Two new chiral ionic liquids, 1 -((-)-menthoxycarbonylmethylene)-3-methylimidazolium hexafluorophosphateand 1-((-)-menthoxycarbonylmethylene)-3-hexadecylimidazolium hexafluorophosphate, were designed an d prepared. Th...Two new chiral ionic liquids, 1 -((-)-menthoxycarbonylmethylene)-3-methylimidazolium hexafluorophosphateand 1-((-)-menthoxycarbonylmethylene)-3-hexadecylimidazolium hexafluorophosphate, were designed an d prepared. Theirchemical structures were characterized by ~1H-NMR. Reverse atom transfer radical polymerization of methyl methacrylate(MMA) in these two ionic liquids was carried out using AIBN/CuCl_2/bipy as the initiating system. The resultant well-definedpolymethyl methacrylate (PMMA) was employed as a macroinitiator to induce the atom transfer radical polymerization ofmenthyl methacrylate (MnMA) in chlorobenzene, which yielded a PMMA-b-PMnMA diblock copolymer with narrow polydispersity.展开更多
文摘随着纤维素应用领域的扩大,对纤维素及其衍生物的接枝改性以提高其适用性变得尤其重要。原子转移自由基聚合(Atom Transfer Radical Polymerization,ATRP)法用于纤维素接枝改性,由于其可控性、活性,且能引入多种接枝链段赋予纤维素不同的性能从而扩大纤维素的应用范围,该方法已得到广泛的关注和研究。本文综述了近十年关于ATRP法用于纤维素接枝改性方面的报道,以不同的纤维素基材为分类,描述多种乙烯基单体在纤维素上进行ATRP接枝共聚的过程,重点介绍纤维素接枝共聚物的新性能以及在不同领域的应用。
基金This work was supported by the National Natural Science Foundation of China (Grants 20174001, 29992590-4) and the Ministry of Education of China for the teaching and research award fund for outstanding young teacher in higher education institutions.
文摘Two new chiral ionic liquids, 1 -((-)-menthoxycarbonylmethylene)-3-methylimidazolium hexafluorophosphateand 1-((-)-menthoxycarbonylmethylene)-3-hexadecylimidazolium hexafluorophosphate, were designed an d prepared. Theirchemical structures were characterized by ~1H-NMR. Reverse atom transfer radical polymerization of methyl methacrylate(MMA) in these two ionic liquids was carried out using AIBN/CuCl_2/bipy as the initiating system. The resultant well-definedpolymethyl methacrylate (PMMA) was employed as a macroinitiator to induce the atom transfer radical polymerization ofmenthyl methacrylate (MnMA) in chlorobenzene, which yielded a PMMA-b-PMnMA diblock copolymer with narrow polydispersity.
