Premium
Simple One‐Pot Syntheses of Water‐Soluble Bis(acyl)phosphane Oxide Photoinitiators and Their Application in Surfactant‐Free Emulsion Polymerization
Author(s) -
Müller Georgina,
Zalibera Michal,
Gescheidt Georg,
Rosenthal Amos,
SantisoQuis Gustavo,
Dietliker Kurt,
Grützmacher Hansjörg
Publication year - 2015
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201400743
Subject(s) - pulmonary surfactant , polymerization , emulsion polymerization , electron paramagnetic resonance , dispersity , emulsion , polymer chemistry , chemistry , radical polymerization , yield (engineering) , styrene , copolymer , materials science , organic chemistry , polymer , biochemistry , physics , nuclear magnetic resonance , metallurgy
The sodium salt of the new bis(mesitoyl)phosphinic acid (BAPO‐OH) can be prepared in a very efficient one‐pot synthesis. It is well soluble in water and hydrolytically stable for at least several weeks. Remarkably, it acts as an initiating agent for the surfactant‐free emulsion polymerization (SFEP) of styrene to yield monodisperse, spherical nanoparticles. Time‐resolved electron paramagnetic resonance (TR‐EPR) and chemically induced electron polarisation (CIDEP) indicate preliminary mechanistic insights.