Self-Healing Materials via Reversible Crosslinking of Poly(ethylene oxide)-Block-Poly(furfuryl glycidyl ether) (PEO-b-PFGE) Block Copolymer Films

被引：122

作者：

Barthel, Markus J. ^{[1
,2
,3
]}

Rudolph, Tobias ^{[1
,2
]}

Teichler, Anke ^{[1
,2
,3
]}

Paulus, Renzo M. ^{[1
,2
]}

Vitz, Juergen ^{[1
,2
,3
]}

Hoeppener, Stephanie ^{[1
,2
,3
]}

Hager, Martin D. ^{[1
,2
]}

Schacher, Felix H. ^{[1
,2
]}

Schubert, Ulrich S. ^{[1
,2
,3
]}

机构：

[1] Univ Jena, Lab Organ & Macromol Chem IOMC, D-07743 Jena, Germany

[2] Univ Jena, Jena Ctr Soft Matter, D-07743 Jena, Germany

[3] Dutch Polymer Inst, NL-5612 AB Eindhoven, Netherlands

来源：

ADVANCED FUNCTIONAL MATERIALS | 2013年 / 23卷 / 39期

关键词：

block copolymers; self-healing materials; (retro-)diels alder reaction; crosslinking; DIELS-ALDER REACTIONS; SUPRAMOLECULAR POLYMERS; RADICAL POLYMERIZATION; MENDABLE POLYMERS; NETWORKS; COATINGS; COMPOSITES; SURFACES; INDENTATION; MALEIMIDE;

D O I：

10.1002/adfm.201300469

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

The application of well-defined poly(furfuryl glycidyl ether) (PFGE) homopolymers and poly(ethylene oxide)-b-poly(furfuryl glycidyl ether) (PEO-b-PFGE) block copolymers synthesized by living anionic polymerization as self-healing materials is demonstrated. This is achieved by thermo-reversible network formation via (retro) Diels-Alder chemistry between the furan groups in the side-chain of the PFGE segments and a bifunctional maleimide crosslinker within drop-cast polymer films. The process is studied in detail by differential scanning calorimetry (DSC), depth-sensing indentation, and profilometry. It is shown that such materials are capable of healing complex scratch patterns, also multiple times. Furthermore, microphase separation within PEO-b-PFGE block copolymer films is indicated by small angle X-ray scattering (lamellar morphology with a domain spacing of approximately 19 nm), differential scanning calorimetry, and contact angle measurements.

引用

页码：4921 / 4932

页数：12

共 63 条

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