Grafting reactions of living macroanions with multi-walled carbon nanotubes

TitleGrafting reactions of living macroanions with multi-walled carbon nanotubes
Publication TypeJournal Article
Year of Publication2007
AuthorsBaskaran, D, Sakellariou, G, Mays, JW, Bratcher, MS
JournalJournal of Nanoscience and Nanotechnology
Volume7
Issue4-5
Pagination1560-1567
Date PublishedAPR
Type of ArticleArticle
ISSN1533-4880
KeywordsAnionic polymerization, covalent functionalization, grafting, multi-walled carbon nanotubes
Abstract

Grafting reactions of living polystyryllithium (PSLi) with acid chloride containing multi-walled carbon nanotubes (MWNTs-COCl) were performed under vacuum in benzene at room temperature. Covalent grafting of polystyrene (PS) was characterized using spectroscopic, microscopic, and thermogravimetric analyses. Grafting at different ratios of macroanion to acylchloride of the carbon nanotubes showed that the grafting efficiency was not dependent on the concentration of the macroanions. The mole percent of PS present in the MWNTs-g-PS samples was inversely proportional to the precursor molecular weight of PSLi. Direct reactions of PSLi, polybutadienyllithium and n-butyllithium with pristine MWNTs without any functional groups were also performed in the presence and in the absence of tetrahydrofuran in benzene. The grafting reactions of living macroanions either with MWNTs-COCl or with pristine MWNTs indicated a partial grafting of polymer on the carbon nanotubes in benzene at room temperature.

DOI10.1166/jnn.2007.459
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)1.338
Divison category: 
Polymer Science & Engineering