Solution Self-Assembly of Chalcogen-Bonding Polymer Partners,ACS Macro Letters

当前位置： X-MOL 学术 › ACS Macro Lett. › 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.)

Solution Self-Assembly of Chalcogen-Bonding Polymer Partners
ACS Macro Letters ( IF 5.1 ) Pub Date : 2020-07-21 , DOI: 10.1021/acsmacrolett.0c00511
Rongjin Zeng ₁ , Zehao Gong ₁ , Liang Chen ₁ , Qiang Yan ₁

Affiliation

Chalcogen bonding is regarded as a form of noncovalent interaction; however, harnessing chalcogen bonds to drive macromolecular self-assembly remains unexplored. Here we report two classes of chalcogen-bonding partner polymers and their unique self-assembly behaviors in THF/H₂O solution. Using simple poly(4-vinylphenyl chalcogenide) (P4VCh, Ch = Te or Se) as the donor polymer and poly(ethylene oxide)-block-poly(4-vinylpyridine N-oxide) (PEO-b-P4VO) as the acceptor polymer, they can form donor–acceptor noncovalent complexes and further aggregate into tubular and spherical assemblies through interchain Te···O and Se···O chalcogen–chalcogen interactions. The small distinction in binding affinity of chalcogen bonds can dictate the assembly of different geometries. Moreover, mixing the strong and weak chalcogen-bonding pairs in various ratios can allow us to obtain ergodic phase evolution with tunable dimensionality and morphology.

中文翻译：

硫属键聚合物合作伙伴的解决方案自组装

硫属元素键被认为是非共价相互作用的一种形式。然而，利用硫属元素键来驱动大分子自组装仍未得到探索。在这里，我们报告了两类硫属键合伴侣聚合物及其在 THF/H ₂ O 溶液中的独特自组装行为。使用简单的聚 (4-乙烯基苯基硫族化物) (P4VCh, Ch = Te 或 Se) 作为供体聚合物和聚 (环氧乙烷)-嵌段-聚 (4-乙烯基吡啶N-氧化物) (PEO- b-P4VO)作为受体聚合物，它们可以形成供体-受体非共价复合物，并通过链间Te···O和Se···O硫属元素-硫属元素相互作用进一步聚集成管状和球形组装体。硫属元素键的结合亲和力的微小差异可以决定不同几何形状的组装。此外，以不同比例混合强和弱硫属键对可以使我们获得具有可调维数和形态的遍历相演化。

更新日期：2020-08-18

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