TY - JOUR
T1 - Towards the optimization of polymer-supported catalysts
T2 - Relationship between local reaction medium and catalyst efficiency
AU - Deratani, André
AU - Maraldo, Thierry
AU - Darling, Graham D.
AU - Fréchet, Jean M.J.
N1 - Funding Information:
Financial support of this researchb y the Natural Sciences and Engineering Research Council of Canada, by NATO, and by the Direction des Relations et de la Coop6ration International(eC NRS) is gratefullya cknowl-edged.
PY - 1988/9
Y1 - 1988/9
N2 - In order to optimize the design of polymer-bound dialkylaminopyridine catalysts, several such heterogeneous catalysts have been evaluated in the acylation of a hindered tertiary alcohol. In particular, the microenvironment and local polarity near the catalytic sites and its influence on catalyst performance has been studied. Comparisons with literature data provide an explanation for some of the differences in reactivities observed by others and confirm that it is important to design the catalysts such that their reactive sites are surrounded by non-polar moieties. Novel approaches such as the grafting of reactive groups onto polyethylene or polytetrafluoroethylene have been tested.
AB - In order to optimize the design of polymer-bound dialkylaminopyridine catalysts, several such heterogeneous catalysts have been evaluated in the acylation of a hindered tertiary alcohol. In particular, the microenvironment and local polarity near the catalytic sites and its influence on catalyst performance has been studied. Comparisons with literature data provide an explanation for some of the differences in reactivities observed by others and confirm that it is important to design the catalysts such that their reactive sites are surrounded by non-polar moieties. Novel approaches such as the grafting of reactive groups onto polyethylene or polytetrafluoroethylene have been tested.
UR - http://www.scopus.com/inward/record.url?scp=0142044876&partnerID=8YFLogxK
U2 - 10.1016/0167-6989(88)90046-3
DO - 10.1016/0167-6989(88)90046-3
M3 - Article
AN - SCOPUS:0142044876
SN - 0167-6989
VL - 9
SP - 19
EP - 28
JO - Reactive Polymers, Ion Exchangers, Sorbents
JF - Reactive Polymers, Ion Exchangers, Sorbents
IS - 1
ER -