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Raman spectroscopic study of the effect of take-up speed on conformation, orientation, and crystallinity in PET fibers (1990)

Bulkin, Bernard J. ; Deblase, Frank J. ; Lewin, Menachem

New York, NY : Wiley-Blackwell

Polymers for Advanced Technologies 1 (1990), S. 133-142

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ISSN: 1042-7147

Schlagwort(e): Raman spectrum ; Crystallinity ; Conformation ; PET fibers ; Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Maschinenbau

Notizen: The dependence of the Raman spectrum of PET fibers on take-up speed (TUS) during high-speed spinning is examined. It is found that conformational change, orientation, and crystallinity, all different functions of TUS as a processing variable, are reflected in the spectra. The data, as well as those from thermal annealing of PET fibers, are shown to be consistent with those from other techniques, leading to a set of equations from which a number of properties of the PET fibers can be determined from the Raman spectrum alone.

Zusätzliches Material: 9 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pat.1990.220010203

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Digitale Medien

Concerning the ‘Non-Specific’ Far Infrared Absorption of Polar Liquids (1969)

Bulkin, Bernard J.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 52 (1969), S. 1348-1354

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Details

ISSN: 0018-019X

Schlagwort(e): Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The far infrared spectra of dimethyl sulfoxide and several aliphatic nitriles have been studied with a view towards elucidating the mechanism responsible for the intense absorption bands which have been observed in this region. Spectra of pure liquids, solid DMSO, DMSO-d6, CD3CN, and dilute solutions in non-polar solvents are presented. The results are discussed in terms of the possible mechanisms proposed for these absorptions.

Zusätzliches Material: 4 Ill.