Premium
H ‐Phosphonic Acid Derivatives as Catalysts for Reversible Chain Transfer Catalyzed Polymerization (RTCP) at Ambient and High Pressure
Author(s) -
Wolpers Arne,
Ackermann Lutz,
Vana Philipp
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000623
Subject(s) - polymerization , chain transfer , molar mass , pinacol , catalysis , chemistry , polymer chemistry , styrene , rtp control protocol , chain termination , molar ratio , ambient pressure , copolymer , radical polymerization , organic chemistry , polymer , thermodynamics , computer network , physics , network packet , computer science
Several H‐ phosphonic acid derivatives (PADs) were analyzed regarding their ability to perform as effective catalysts in reversible chain transfer catalyzed polymerization (RTCP), a relatively new type of controlled radical polymerization. Therefore, bulk polymerizations of styrene at 100 °C using different PADs were studied in detail. The obtained number‐average molar masses and polydispersities of the polymeric products showed that a cyclic PAD derived from pinacol was found to be a very well suited catalyst for RTCP under the chosen conditions. In addition, RTCPs at high pressure up to 2000 bar were conducted indicating poor molar mass control compared to the systems at ambient pressure.