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Molecular Weight Determination by Luminescent Chemo–enzymatics
Author(s) -
Pires Rita F.,
Moro Artur,
Lourenço Anita,
Lima João C.,
Casimiro Teresa,
Bonifácio Vasco D. B.
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601301
Subject(s) - polymer , luminescence , supercritical carbon dioxide , fluorescence , polyurea , materials science , supercritical fluid , cadmium telluride photovoltaics , chemistry , dendrimer , combinatorial chemistry , nanotechnology , chemical engineering , polymer chemistry , organic chemistry , optoelectronics , physics , engineering , quantum mechanics , coating
A novel methodology for the determination of the number‐average molecular weight ( M w ) of linear, branched and crosslinked polymers is disclosed. The method relies on chemo‐enzymatic‐triggered fluorescence of dormant CdTe polymer‐caged quantum dots synthesised in supercritical carbon dioxide. Polyurea (PURE) dendrimers (G1, G4, G5 and G6) are presented as a case study using the enzyme urease but the protocol is applicable to other synthetic and natural polymers. Simple, versatile and accurate, luminescent chemo‐enzymatics is a low cost alternative to conventional techniques ( e. g . GPC/SEC, MALDI‐TOF).