Microgel containers for self-healing polymeric materials: Morphology prediction and mechanism of formation

POLYMER

卷:73

Article

Latnikova, Alexandra¹  Grigoriev, Dmitry²  Moehwald, Helmuth²  Shchukin, Dmitry³ 

[1] Fraunhofer Inst Appl Polymer Res IAP, D-14476 Potsdam, Germany

[2] Max Planck Inst Colloids & Interfaces, D-14476 Potsdam, Germany

[3] Univ Liverpool, Liverpool L69 7ZD, Merseyside, England

关键词: Microgel;    Microparticles;    Encapsulation;    Morphology;    Coreshell;    Compact;    Multicompartment;    Interfacial polymerization;   

DOI  :  10.1016/j.polymer.2015.07.048

来源: Elsevier

【 摘 要 】

18 types of gel microparticles, composed of 3 polymer types and 6 different solvents, were prepared by interfacial polymerization and compared in a systematic way with respect to their structure and function. Three types of morphologies, specific for each polymer-solvent pair, were observed: core-shell, multicompartment and compact. The morphology was found to be a direct consequence of the specific polymer-solvent interactions and can be, in most cases, predicted on the basis of simple swelling experiments with a chosen polymer in the solvent. Further, the Hansen Solubility Parameters approach was applied to the investigated systems enabling a reliable morphology prediction of microgel particles made of any polymer/solvent combination with known solubility parameters (spheres). The mechanisms responsible for the formation of particles with different morphologies are also discussed. (C) 2015 Elsevier Ltd. All rights reserved.

【 授权许可】

Free