Photo base generators

WPBG-027

Cas : 1203424-93-4

generated by photoirradiation, piperidine No 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.
Molecular formula
Chemical name (E)-1-Piperidino-3-(2-hydroxyphenyl)-2-propen-1-one
CAS RN® 1203424-93-4
Molecular weight 231.29
Inquiry form Catalog DL

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)

Absorption spectrum of WPBG-027

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

Diagram of base generation

Reference

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

Inquiry form Catalog DL