3D fabrication of Shape-Memory polymer networks based on coumarin Photo-Dimerization

被引：9

作者：

Benkhaled, Belkacem Tarek ^{[1
]}

Belkhir, Kedafi ^{[1
,2
]}

Brossier, Thomas ^{[1
]}

Chatard, Camille ^{[3
]}

Graillot, Alain ^{[3
]}

Lonetti, Barbara ^{[4
]}

Mingotaud, Anne-Francoise ^{[4
]}

Catrouillet, Sylvain ^{[1
]}

Blanquer, Sebastien ^{[1
]}

Lapinte, Vincent ^{[1
]}

机构：

[1] Univ Montpellier, ICGM, CNRS, ENSCM, Montpellier, France

[2] Univ Lille, UMET Unite Mat & Transformat, CNRS, INRAE,UMR 8207,Cent Lille, F-59000 Lille, France

[3] Spec Polymers, Parc Via Domitia,150 Ave Cocardieres, F-34160 Castries, France

[4] Univ Paul Sabatier, Univ Toulouse, IMRCP, CNRS UMR 5623, 118 Route Narbonne, F-31062 Toulouse 9, France

来源：

EUROPEAN POLYMER JOURNAL | 2022年 / 179卷

关键词：

DESIGN; UNITS;

D O I：

10.1016/j.eurpolymj.2022.111570

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Photo-crosslinked shape-memory polymer (SMP) materials were obtained by the copolymerization of methacrylates bearing 2-ethylhexyl plasticizing group (EHMA) and photoactive coumarin unit (CoumMA). The photo-dimerization of coumarin units ensured the crosslinking of P(EHMA-co-CoumMA) and further allowed the fabrication by stereolithography of well-defined butterfly with ribbed wings to illustrate the potential of promising coumarin chemistry in additive fabrication. The influence of dye ratio on the optical and the mechanical properties of the transparent P(EHMA-co-CoumMA) films as well as the shape memory properties of the films in unfolding and twisting deformations were detailed and demonstrate the opportunity of coumarin-bearing photoprintable polymers for 4D printing.

引用

页数：8

共 28 条

[21] Development of a light-deactivatable PSA via photodimerization [J].