Synthesis of Supramolecular A8Bn Miktoarm Star Copolymers by Host-Guest Complexation

被引：6

作者：

Nitta, Natsumi ^{[3
]}

Kihara, Shin-Ichi ^{[4
]}

Haino, Takeharu ^{[1
,2
]}

机构：

[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, Dept Chem, I-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

[2] Hiroshima Univ, Int Inst Sustainabil Knotted Chiral Meta Matter S, 2-313 Kagamiyama, Higashihiroshima, Hiroshima 7398527, Japan

[3] Hiroshima Univ, Grad Sch Sci, Dept Chem, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

[4] Hiroshima Univ, Dept Chem Engn, Grad Sch Adv Sci & Engn, I-4-1 Kagamiyama, Higashihiroshima, Hiroshima 7398527, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 14期

关键词：

Copolymers; Host-Guest Systems; Miktoarms; Molecular Recognition; Supramolecular Chemistry; FRAGMENTATION CHAIN TRANSFER; DENSELY BRANCHED POLYMERS; TOPOLOGY TRANSFORMATION; ENCAPSULATION; POLYMERIZATION; TERPOLYMERS; DIVERGENT; CORE; DOSY;

D O I：

10.1002/anie.202219001

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a new synthetic method to construct supramolecular A(8)B(n) (n= 1, 2, 4) miktoarm star copolymers by host-guest complexation between a resorcinarene-based coordination capsule possessing eight polystyrene chains and 4,4-diacetoxybiphenyl guest molecules that retain one, two or four polymethyl acrylate chains. The formation of the supramolecular A8Bn (n= 1, 2, 4) miktoarm star copolymers was confirmed by dynamic light scattering (DLS), sizeexclusion chromatography (SEC), and diffusion-ordered NMR spectroscopy (DOSY). Differential scanning calorimetry (DSC) measurements revealed that the miktoarm copolymers were phase-separated in the bulk. The micro-Brownian motion of the A(8)B(4) structure was markedly enhanced in the bulk due to a weak segregation interaction between the immiscible arms.

引用

页数：9

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