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Digitale Medien

On the nature of intermolecular interactions in polymer blends. Use of model compounds as a tool for investigating polymer-polymer miscibility (1994)

Ruggeri, Giacomo ; Bertani, Roberto ; Aglietto, Mauro ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

Polymer International 34 (1994), S. 1-6

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ISSN: 0959-8103

Schlagwort(e): polymer blends ; miscibility ; functionalized polyolefins ; model compounds ; FTIR ; Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Maschinenbau , Physik

Notizen: An FTIR study has been performed on two low molecular weight model compounds of diethylmaleate functionalized polyethylene, ethyl 3-carbethoxy-4-propylheptanoate (EPH) and ethyl 3-carbethoxy-4-hexyldecanoate (EHD), recording spectra in different solvents (heptane, tetrahydrofuran, carbon tetrachloride, chloroform) and in the presence of a presumable PVC model, 2-chlorobutane (2CB). These different systems allowed the observation of some correlations between spectroscopic data and chemical composition of solutions and functionalized polyethylene/PVC blends, supporting the hypothesis of specific hydrogen bond type interactions between the carboxylic oxygen of the functionalized polyethylene and the methinic hydrogens of PVC.

Zusätzliches Material: 6 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pi.1994.210340101

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Digitale Medien

FT-IR analysis of single human normal and leukemic lymphocytes (1988)

Benedetti, Enzo ; Vergamini, Piergiorgio ; Spremolla, Giuliano

Springer

Microchimica acta 94 (1988), S. 139-141

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ISSN: 1436-5073

Schlagwort(e): FT-IR microspectrometry ; leukemia ; lymphocytes

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract The infrared spectra of single human normal and leukemic lymphocytes have been obtained by means of the microscope-FT-IR system. Substantial differences between the two kinds of cells have been observed at level of the O-P-O vibrations of the DNA and of the proteic components. This determination opens up the possibility in determining the early stages of leukemia, in following the course of patients under therapy, and in evaluation of the residual neoplastic disease.