Electrospray mass spectrometry studies of macromolecules containing 1,3-oxazolidine moieties.
The polycondensation of terephthalaldehyde with 2-amino-2-methyl-1,3-propanediol using acidic catalysts leads to the formation of linear polymers and macrocyclic compounds with 2-(1',4'-phenylene)-5-methyl-1-aza-3,7-dioxabicyclo[3.3.0]octane as the repeating unit in all compounds. The structure of the polymer was determined by 1H- and 13C-NMR spectroscopy, and electrospray ionization mass spectrometric (ESI-MS) analysis. ESI-MS measurements were used to study the details of the polymer structure and support the equimolar alternating nature of bicyclo-O,N-acetals of terephthaldehyde in these macromolecules.
Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland. jms1acet@zeus.polsl.gliwice.pl
J
J
Maślińska-Solich
E
E
Gibas
D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D010080:Oxazoles / Q000032:analysis*; D010795:Phthalic Acids / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
D010080:Oxazoles; D010795:Phthalic Acids; D011108:Polymers; C064210:oxazolidine; C011363:terephthalic acid