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| Hauptseite > Publikationsdatenbank > Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures > print |
| Hauptseite > Publikationsdatenbank > Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures > print |
| 001 | 281787 | ||
| 005 | 20240619091919.0 | ||
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| 100 | 1 | _ | |a Allgaier, J. |0 P:(DE-Juel1)130501 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures |
| 260 | _ | _ | |a London |c 2016 |b RSC Publishing |
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| 520 | _ | _ | |a In this work we present the synthesis of poly(1,2-butylene oxide) (PBO) functionalized with the complementary hydrogen bond forming groups 2,4-diaminotriazine (DAT) and thymine. PBO is a rubbery polymer. Due to its semi-polar nature PBO is expected to suppresses non-directed cluster formation of the supramolecular groups but not influence their directed interactions. For the synthesis of backbone functionalized polymers we developed a procedure which allowed randomly copolymerizing BO with 1,2-epoxy-7-octene using anionic ring opening polymerization with potassium tert-butanolate as initiator. The vinyl groups were converted to OH-groups by oxidation. In addition, PBO with one alcoholic end group was obtained by homopolymerization of BO. For the variant with OH-groups at both chain ends a procedure was developed which was based on the cleavage of the tert-butyl initiator group. In all the polymers the alcohol groups were basically quantitatively transformed into NH2-groups. DAT and thymine functionalities were attached to the NH2-groups again in almost quantitative conversion. All reaction steps were monitored by 1H-NMR using pyridine-d5 as solvent. This method allowed determining the conversions of the different synthesis steps with high precision. The materials were examined in linear rheology in order to study the effect of the hydrogen-bonds on the dynamics of the resulting supramolecular structures. The results corroborate the exclusive existence of directed interactions between the supramolecular groups. |
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| 773 | _ | _ | |a 10.1039/C5RA24547H |g Vol. 6, no. 8, p. 6093 - 6106 |0 PERI:(DE-600)2623224-8 |n 8 |p 6093 - 6106 |t RSC Advances |v 6 |y 2016 |x 2046-2069 |
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