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Linear all-orthooligomers of phenol-formaldehyde resins

✍ Scribed by Tada-Aki Yamagishi; Kenji Tani; Shin-ichiro Ishida; Yoshiaki Nakamoto

Publisher
Springer
Year
1994
Tongue
English
Weight
272 KB
Volume
33
Category
Article
ISSN
0170-0839

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Studies of the electron spin resonance in dependence on heattreatment temperature (HTT) were carried out for phenol-formaldehyde resin (PF), 3methylphenol-formaldehyde resin (SMPF) and 3,5-dimethylphenol-formaldehyde resin (3, SDMPF) prepared with aqueous solution of ammonia as catalyst. The peak-to