000029707 001__ 29707
000029707 005__ 20150420164413.0
000029707 0248_ $$aoai:doc.rero.ch:20120831094243-CT$$punifr$$ppostprint$$prero_explore$$particle$$zthesis_urn$$zreport$$zthesis$$zbook$$zcdu54$$zjournal$$zcdu16$$zpreprint$$zcdu1$$zdissertation$$zcdu34
000029707 041__ $$aeng
000029707 080__ $$a54
000029707 100__ $$aSchaefer, Mark$$uDepartment of Chemistry, University of Fribourg, Switzerland
000029707 245__ $$9eng$$aROMP copolymers for orthogonal click functionalizations
000029707 269__ $$c2012-08-22
000029707 520__ $$9eng$$aThe ring-opening metathesis polymerization using ruthenium carbene initiators developed by Grubbs et al. is one of the most functional group tolerant living polymerization methods known. One of the most used postpolymerization functionalization methods used today is the copper-catalyzed 1,3-dipolar cycloaddition between alkynes and organic azides. Organic azides are, however, not tolerated by ruthenium carbene initiators, and nonprotected alkynes have been shown to slow down the propagation reaction or react with the propagating species leading to broad molecular weight distributions. Here we report the copolymer synthesis of three orthogonally functionalizable monomers: one carrying an activated pentafluorophenyl ester, one a maleimide unit, and a third one a trialkylsilyl-protected alkyne. From these monomers, statistical terpolymers as well as diblock copolymers were synthesized with different molecular weights and monomer compositions or block ratios, respectively. Excellent control over molecular weight and molecular weight distribution could be achieved using Grubbs’ first-generation ruthenium carbene initiator. Herein we present the synthesis and orthogonal triple postpolymerization functionalization of these copolymers.
000029707 700__ $$aHanik, Nils$$uDepartment of Chemistry, University of Fribourg, Switzerland
000029707 700__ $$aKilbinger, Andreas F. M.$$uDepartment of Chemistry, University of Fribourg, Switzerland
000029707 773__ $$g2012///-$$tMacromolecules
000029707 775__ $$gPublished version$$ohttp://dx.doi.org/10.1021/ma301061z
000029707 8564_ $$fkil_rco.pdf$$qapplication/pdf$$s981054$$uhttp://doc.rero.ch/record/29707/files/kil_rco.pdf$$yorder:1$$zpdf
000029707 8564_ $$fkil_rco_sm.pdf$$qapplication/pdf$$s1077083$$uhttp://doc.rero.ch/record/29707/files/kil_rco_sm.pdf$$yorder:2$$zSupplementary material
000029707 918__ $$aFaculté des sciences$$bDécanat, Ch. du Musée 6A, 1700 Fribourg$$cChimie
000029707 919__ $$aUniversité de Fribourg$$bFribourg$$ddoc.support@rero.ch
000029707 980__ $$aPOSTPRINT$$bUNIFR$$fART_JOURNAL
000029707 990__ $$a20120831094243-CT