IR spectroscopic analysis of the structure of a biospecific sorbent based on a polyethylene matrix

We have used IR spectroscopy to study the structure of a biospecific sorbent based on a polyethylene matrix, modified by radiation grafting of acrylic acid with L-tryptophan methyl ester as the ligand. We show that grafted polyacrylic acid forms on polyethylene beads. We have established that chemic...

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Bibliographic Details
Published inJournal of applied spectroscopy Vol. 77; no. 4; pp. 569 - 573
Main Authors Korolenko, E. A., Korolik, E. V., Tretinnikov, O. N., Fedorov, A. A., Golubovich, V. P.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.09.2010
Springer
Subjects
Acrylic acid
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Hydrogen
Nuclear radiation
Physics
Physics and Astronomy
Polyethylene
Polymerization
Spectrum analysis
Tryptophan
biospecific sorbent
acrylic acid
L-tryptophan methyl ester
graft polymerization
infrared spectrum
polyethylene
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Summary:We have used IR spectroscopy to study the structure of a biospecific sorbent based on a polyethylene matrix, modified by radiation grafting of acrylic acid with L-tryptophan methyl ester as the ligand. We show that grafted polyacrylic acid forms on polyethylene beads. We have established that chemical addition of the ligand to the modified polyethylene matrix occurs with participation of COOH groups of the polyacrylic acid and NH2 groups of the L-tryptophan methyl ester. We have observed that in the end product, strong hydrogen bonds are formed between the carbonyl groups of the ligand and the unreacted carboxyl groups of the grafted polyacrylic acid.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-010-9370-0