Document Detail

Organometallic mediated radical polymerization of vinyl acetate using bis(imino)pyridine vanadium trichloride complexes.
MedLine Citation:
PMID:  23340495     Owner:  NLM     Status:  Publisher    
The synthesis and characterization of one novel proligand and six novel vanadium(iii) trichloride complexes is described. The controlled radical polymerization activity towards vinyl acetate of these, and eight other bis(imino)pyridine vanadium trichloride complexes previously reported, is investigated. Those complexes possessing variation at the N-aryl para-position with no steric protection offered by ortho-substituents (4 examples) result in poor control over poly(vinyl acetate) polymerization. Control is improved with increasing steric bulk at the ortho-position of the N-aryl substituent (4 examples) although attempts to increase steric bulk past isopropyl were unsuccessful. Synthesizing bis(imino)pyridine vanadium trichloride complexes with substituted imine backbones restores polymerization control when aliphatic substituents are used (4 examples) but ceases to make any drastic improvements on catalyst lifetime. Modification of the polymerization conditions is also investigated, in an attempt to improve the catalyst lifetime. Expansion of the monomer scope to include other vinyl esters, particularly those derived from renewable resources, shows promising results.
Mitchell R Perry; Laura E N Allan; Andreas Decken; Michael P Shaver
Related Documents :
24557335 - Utility of tris(4-bromopyridyl) europium complexes as versatile intermediates in the di...
23521125 - Spontaneous self-assembly of silver nanoparticles into lamellar structured silver nanol...
23212285 - Formic acid dehydrogenation catalysed by ruthenium complexes bearing the tripodal ligan...
22987505 - Sterically hindered o-quinone annulated with dithiete: a molecule comprising diolate an...
17148915 - Proton-transfer and non-transfer in compounds of quinoline and quinaldic acid with l-ta...
11666825 - Ring systems containing anionic and cationic gallium centers: structural and bonding co...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
University of Prince Edward Island, 550 University Avenue, C1A 4P3, Charlottetown, PE, Canada.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Membrane tethered bursicon constructs as heterodimeric modulators of the Drosophila G protein-couple...
Next Document:  Redox-proteomic analysis of doxorubicin-induced altered thiol activity in cardiomyocytes.