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Linear‐dendritic copolymers as nanocatalysts
Author(s) -
Adeli M.,
Zarnegar Z.
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30005
Subject(s) - polymer chemistry , copolymer , ethylene glycol , cyanuric chloride , ring opening polymerization , polymerization , caprolactone , peg ratio , chemistry , oxazoline , amphiphile , end group , materials science , organic chemistry , polymer , catalysis , finance , economics
Functionalized poly(ethylene glycol) (PEG) containing four chloride end functional groups (PEG‐Cl 4 ) was synthesized through reaction between cyanuric chloride and PEG‐(OH) 2 . Chloride end functional groups of PEG‐Cl 4 were able to initiate the ring opening polymerization of 2‐ethyl‐2‐oxazoline and star copolymers containing a PEG core, and poly(2‐ethyl‐2‐oxazoline) (POX) arms were obtained. Polymerization was quenched using diethanolamine, and star copolymers containing hydroxyl end functional groups (PEG‐POX‐OH) were obtained. ε‐Caprolactone was then polymerized using the hydroxyl end functional groups of star copolymers and amphiphilic linear‐dendritic copolymers containing PEG and POX, and poly(caprolactone) (PCL) blocks were synthesized. Linear‐dendritic copolymers were able to load the organic and inorganic guest molecules. Application of host‐guest systems such as nanocatalyst for Heck chemical reaction was also investigated. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009