Polymer-related chemicals

WPBG-027

Photo base generators

generated by photoirradiation, piperidineNo outgassing

Plastics manufacturing

Photocurable

  • Generates piperidine (b.p. = 106°C) of secondary amine by light irradiation.
  • Does not generate carbon dioxide gas at the time of base generation.
  • Shows high heat stability in different monomers.
  • Soluble in strong alkali due to its phenolic hydroxyl functionality.
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Chemical name (E)-1-Piperidino-3-(2-hydroxyphenyl)-2-propen-1-one
CAS RN® 1203424-93-4
Molecular weight 231.29

Physical characteristics

Color
Appearance
white
crystalline powder - mass
Melting point/freezing point 232℃
Solubilities water, acetone, methanol, PGMEA (1-methoxy-2-propyl acetate) : slightly soluble.
1-methyl-2-pyrrolidone : soluble. DMSO : soluble.
TG-DTA weight loss from 220℃
Solubility (g/solv. 100 g)
  • NMP8
  • GBL<0.5
  • PGMEA<0.5
  • Acetone<0.5
  • Ethyl lactate<0.5
  • PGME<0.5
  • Methanol<0.5
  • H2O<0.5

UV(0.02 mg/mL in CH3CN)

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Absorption maximum
271 nm(ε=13500) 254 nm(ε=8700) 365 nm(ε=35)

Related laws and regulations

TSCA Not Listed
EINECS Not Listed
REACH Not Listed

Mechanism of base generation

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Reference

K. Arimitsu., et al., Polymer Preprints, Japan, 2007, 56, 4263.