Co-polymerization analysis of thermosetting resins using 1 H- 15 N- 13 C triple resonance NMR spectroscopy
1H-15N-13C correlation NMR spectroscopy techniques developed to identify and characterize co-polymer fragments in melamine-urea-formaldehyde (MUF) and phenol-urea-formaldehyde (PUF) model systems have been applied to industrially prepared MUF, PUF, and phenol-melamine-formaldehyde (PMF) resins. The NMR data confirm that co-polymers form in a commercially prepared MUF resin manufactured by Momentive Specialty Chemicals Pty. Ltd. Spectra from PUF model reactions were compared with those from a...[Show more]
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|Source:||Journal of Applied Polymer Science|
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