Poly(dibenzodiazocine)s: analysis of low molecular weight fractions by MALDI-TOF MS

Poly(dibenzodiazocine)s: analysis of low molecular weight fractions by MALDI-TOF MS

Poly(dibenzodiazocine)s, members of a new class of polyimines with high thermal stability and solubility in organic solvents, were synthesized from 2-amino-4′-fluorobenzophenone and three bisphenols. The high molecular weight polymers were shown by MALDI-TOF mass spectra to be accompanied by low mol...

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Veröffentlicht in:Polymer bulletin (Berlin, Germany) Germany), 2009-10, Vol.63 (4), p.509-515
Hauptverfasser: Hoppin, Charles, Bates, Robert B., Contreras, Cristina G., Somogyi, Arpad, Streeter, Matthew J., Hall, H. K.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Cyclic oligomers
Dilution
Exact sciences and technology
Low molecular weights
Mass spectra
Molecular weight
Oligomers
Organic Chemistry
Organic polymers
Original Paper
Phenols
Physical Chemistry
Physicochemistry of polymers
Polyazomethines
Polycondensation
Polymer Sciences
Polymerization
Polymers
Potash
Potassium
Preparation, kinetics, thermodynamics, mechanism and catalysts
Soft and Granular Matter
Thermal stability
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Zusammenfassung:Poly(dibenzodiazocine)s, members of a new class of polyimines with high thermal stability and solubility in organic solvents, were synthesized from 2-amino-4′-fluorobenzophenone and three bisphenols. The high molecular weight polymers were shown by MALDI-TOF mass spectra to be accompanied by low molecular weight linear oligomers with the expected end group combinations and low molecular weight cyclic oligomers. The yields of the smaller cyclics were raised using a pseudo-dilution polymerization method.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-009-0118-z