Spacer-Length-Dependent Association in Polymers with Multiple-Hydrogen-Bonded End Groups
نویسندگان
چکیده
Herein, we investigate the influence of spacer length on the homoassociation and heteroassociation of endfunctionalized hydrogen-bonding polymers based on poly(nbutyl acrylate). Two monofunctional ureido-pyrimidinone (UPy) end-functionalized polymers were prepared by atom transfer radical polymerization using self-complementary UPyfunctional initiators that differ in the spacer length between the multiple-hydrogen-bonding group and the chain initiation site. The self-complementary binding strength (Kdim) of these end-functionalized polymers was shown to depend critically on the spacer length as evident from H NMR and diffusionordered spectroscopy. In addition, the heteroassociation strength of the end-functionalized UPy polymers with endfunctionalized polymers containing the complementary 2,7-diamido-1,8-naphthyridine (NaPy) hydrogen-bond motif is also affected when the aliphatic spacer length is too short. VC 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49:
منابع مشابه
Abstract for an Invited Paper for the MAR06 Meeting of The American Physical Society Theoretical Modeling of Hydrogen Bonded and Metal-Ligand Associating Polymers1
for an Invited Paper for the MAR06 Meeting of The American Physical Society Theoretical Modeling of Hydrogen Bonded and Metal-Ligand Associating Polymers1 ELENA DORMIDONTOVA, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106; E-mail:[email protected] Applying analytical modeling in combination with Monte Carlo simulations we have studied the...
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