Acrylic Polymers Containing a Nickel Salphen Complex: An Approach to Supramolecular and Macromolecular Systems.,ChemPlusChem

当前位置： X-MOL 学术 › ChemPlusChem › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Acrylic Polymers Containing a Nickel Salphen Complex: An Approach to Supramolecular and Macromolecular Systems.
ChemPlusChem ( IF 3.0 ) Pub Date : 2020-08-24 , DOI: 10.1002/cplu.202000471
Gustavo A Zelada-Guillén ₁ , Paulina Hernández-Pacheco ₁ , Margarita Romero-Ávila ₁ , Roberto Carlos Cañas-Alonso ₁ , Marcos Flores-Álamo ₁ , Martha V Escárcega-Bobadilla ₁

Affiliation

The synthesis, characterization and crystallographic analysis is reported of a new Nickel Salphen complex and its radical copolymerization with n‐butyl acrylate and methyl methacrylate to produce novel host macromolecules with tunable association against guest anions. Spectrophotometric titrations of the complex and of the polymers revealed that a supramolecular regulation of guest‐binding accessibility was enabled by the number of Ni‐Salphen units per chain. The latter content in turn, determined the chain size and molecular weight uniformity upon polymerization, and likely increased the strength in interchain/intrachain non‐covalent interactions over the nickel center and the acrylic domains. The study also showed that incorporation of the monomer into the acrylic polymer backbone opened the possibility for the nickel binding site to gain access to host:guest stoichiometric discrimination, switching from 1 : 1 (major) and 1 : 2 (minor) both coexisting for the host when in the free form, to mostly 1 : 2 when in the polymerized version.

中文翻译：

包含镍二氮烯配合物的丙烯酸聚合物：一种超分子和大分子体系的方法。

报道了一种新的镍Salphen配合物及其与n的自由基共聚的合成，表征和晶体学分析。丙烯酸丁酯和甲基丙烯酸甲酯可生产新颖的主体大分子，可针对客体阴离子进行可调缔合。配合物和聚合物的分光光度滴定表明，每条链上的Ni-Salphen单元的数量使客体结合可及性的超分子调节成为可能。后者的含量反过来决定了聚合时链的大小和分子量的均匀性，并可能增加了镍中心和丙烯酸域上链间/链内非共价相互作用的强度。研究还表明，将单体掺入丙烯酸聚合物主链中打开了镍结合位点进入主体：客体化学计量比辨别的可能性，从1：1（主要）和1：2（次要）同时存在主机为自由形式时，

更新日期：2020-08-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11