Structure of Polymer Tethered Highly Grafted Nanoparticles

Autor:	Jitendra Sharma, Krzysztof Matyjaszewski, Joanna Pietrasik, Ramanan Krishnamoorti, Vivek S. Goel, Hongchen Dong
Rok vydání:	2011
Předmět:	Inorganic Chemistry chemistry.chemical_classification Materials science Polymers and Plastics chemistry Organic Chemistry Radical polymerization Minimum distance Polymer chemistry Materials Chemistry Nanoparticle Polymer
Zdroj:	Macromolecules. 44:8129-8135
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma200621r
Popis:	Spherical nanoparticles of silica grafted with a dense brush of low-polydispersity polymers prepared by living radical polymerization are shown to form ordered crystalline structures. The minimum distance between nanoparticle surfaces, a good measure of the end-to-end distance of the tethered polymers, scales as the square root of the molecular weight of the polymer chains. The blending of the grafted nanoparticles with homopolymers of matched and mismatched molecular weights indicates that the crystalline order persists even with high amounts of homopolymer added and for such diluted systems with as little as 0.7 vol % silica.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0da8a8cacfb806f31901aab5dc0d2cfc https://doi.org/10.1021/ma200621r Zobrazit plný text záznamu