Macrocyclic P3HT Obtained by Intramolecular McMurry Coupling of Linear Bis-Aldehyde Polymer: A Direct Comparison with Linear Homologue

被引：9

作者：

Delbosc, Nicolas ^{[1
]}

De Winter, Julien ^{[2
]}

Moins, Sebastien ^{[1
]}

Persoons, Andre ^{[3
]}

Dubois, Philippe ^{[1
,4
]}

Coulembier, Olivier ^{[1
]}

机构：

[1] Univ Mons, Lab Polymer & Composite Mat, CIRMAP, Ave Maistriau 19, B-7000 Mons, Belgium

[2] Univ Mons, Serv Synth & Spectrometrie Masse Organ S2MOS, Ave Maistriau 19, B-7000 Mons, Belgium

[3] Katholieke Univ Leuven, Lab Mol Imaging & Photon, Celestijnenlaan 200D,Box 2425, B-3001 Leuven, Belgium

[4] Luxembourg Inst Sci & Technol, Natl Composite Ctr Luxembourg, 4 Rue Bommel, L-4940 Hautcharage, Luxembourg

来源：

MACROMOLECULES | 2017年 / 50卷 / 05期

关键词：

SHAPE-PERSISTENT MACROCYCLES; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); CYCLIC POLYMERS; MOLECULAR-WEIGHT; HIGH CRYSTALLINITY; CLICK CYCLIZATION; BUILDING-BLOCKS; RING; GIANT; SPECTROSCOPY;

D O I：

10.1021/acs.macromol.6b02599

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Different P3HT chain lengths have been synthesized, functionalized at both chain ends with aldehyde moieties and finally cyclized following the McMurry reaction in a pseudo high dilution process. The confirmation of the high yielded intramolecular coupling came from the decrease of the hydrodynamic radius observed by SEC, correlated to the conservation of the mass distribution by MALDI-ToF and by the very low content of residual linear precursor estimated by NMR. Different aggregation behaviors between linear and cyclic and between short and long systems have been pointed out by DSC and UV vis absorption spectroscopy. We estimate that long cyclic structures present similar aggregation behavior than long linear ones mainly due to the folding of those chains.

引用

页码：1939 / 1949

页数：11

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