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Novel initiators for the synthesis of propylene oxide oligomers by anionic ring opening polymerization

✍ Scribed by Gabriel Cendejas; Felipe Arreguín; César Flores; Iván Villalobos; Eugenio Flores; Flavio Vázquez

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
610 KB
Volume
130
Category
Article
ISSN
0920-5861

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## Abstract Anionic ring‐opening polymerization of propylene oxide in the presence of a potassium alkoxide initiator was accelerated by the addition of the bulky phosphonium salts tetrakis[cyclohexyl(methyl)amino]phosphonium‐, tetrakis[propyl(methyl)amino]phosphonium‐, and tetrakis[octyl(methyl)ami

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## Abstract Diblock copolymers of poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) were synthesized by the anionic ring‐opening polymerization of propylene oxide (PO), with controlled microwave heating in sealed vessels. A detailed study was carried out to investigate the effects of diffe