Formation of Nanostructured Materials via Coalescence of Amphiphilic Hollow Particles

Autor:	S. Z. D. Cheng, Frank W. Harris, Kin Man Ho, Pei Li, Panya Sunintaboon
Rok vydání:	2006
Předmět:	Coalescence (physics) business.product_category Aqueous solution Nanostructure Chemistry Radical polymerization Nanoparticle Nanotechnology General Chemistry Biochemistry Catalysis Colloid and Surface Chemistry Chemical engineering Microfiber Amphiphile Copolymer business
Zdroj:	Journal of the American Chemical Society. 128:2168-2169
ISSN:	1520-5126 0002-7863
DOI:	10.1021/ja056065p
Popis:	A new, simplified route to amphiphilic core-shell nanotubes, microfibers, and microrods has been developed that does not involve the traditional utilization of well-defined block copolymers. Thus, amphiphilic graft copolymers (PEI-g-PMMA) are prepared by an aqueous free radical polymerization that self-assemble in situ to form uniform core-shell nanoparticles. The hydrophobic homopolymer (PMMA) that is also formed is incorporated in the cores. Slight cross-linking of the shells followed by extraction of the homopolymer results in hollow nanoparticles that coalesce to form nanotubes. When the shells are not cross-linked, the hollow particles coalesce to form microrods and microfibers. The sizes and shapes of the micromaterials can be controlled by varying the experimental conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::935fb86e041c369150661bed3351a51d https://doi.org/10.1021/ja056065p Zobrazit plný text záznamu