Syntheses and characterizations of the multiple morphologies formed by the self-assembly of the semicrystalline P4VP-b-PCL diblock copolymers

Autor:	Hsin-Fang Lee, Shiao-Wei Kuo, Feng-Chih Chang, Chu-Hua Lu, Shih-Chi Chan
Rok vydání:	2007
Předmět:	Polymers and Plastics Chemistry Vesicle Organic Chemistry Radical polymerization technology industry and agriculture Supramolecular chemistry Micelle Lamella (surface anatomy) Polymerization Chemical engineering Polymer chemistry Materials Chemistry Copolymer sense organs Self-assembly
Zdroj:	Polymer. 48:5059-5068
ISSN:	0032-3861
DOI:	10.1016/j.polymer.2007.06.053
Popis:	A series of semicrystalline diblock copolymers of poly(4-vinylpyridine-b-ɛ-caprolactone) (P4VP-b-PCL) have been synthesized by the living ROP of CL followed by the TEMPO polymerization of 4-VP. Depending on the relative block length and different solvent compositions, these copolymers self-assemble into different supramolecular structures in toluene/dichloromethane (DCM) solution, including spherical micelles, bowl-shaped vesicles, multilayer vesicles, porous spheres, and large compound micelles. In methanol/DCM solution system, the crystalline PCL core disturbs the balance of free energy, thus results in a series of morphological changes including spherical micelles, worm-like rods, vesicles, coexisted vesicles and lamella, and finally platelet lamella.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0674617313ac1b0454d62b7aa9709b41 https://doi.org/10.1016/j.polymer.2007.06.053 Zobrazit plný text záznamu Full Text from ScienceDirect