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Complementary multiple hydrogen bonds stabilize thermo-sensitive supramolecular structures prepared from poly(N-isopropyl acrylamide) and adenine-functionalized poly(ethylene oxide)
- Source :
- European Polymer Journal. 50:168-176
- Publication Year :
- 2014
- Publisher :
- Elsevier BV, 2014.
-
Abstract
- In this study, we synthesized a poly( N -isopropylacrylamide) (PNIPAm) through the polymerization of N -isopropylacrylamide in distilled water with azodiisobutyronitrile as the initiator and a bisadenine-functionalized poly(ethylene oxide) (A-PEO-A) from the reaction of adenine with a difunctionalized toluenesulfonyl-PEO. When blended together in distilled water, PNIPAm and A-PEO-A formed supramolecular aggregates stabilized through complementary multiple hydrogen bonds between the amide groups of PNIPAm and the adenine units of A-PEO-A. Fourier transform infrared spectroscopy, 1 H nuclear magnetic resonance spectroscopy, transmission electron microscopy, dynamic light scattering, and rheometry revealed the thermo-sensitive behavior and viscoelastic properties of the supramolecular assemblies.
- Subjects :
- Materials science
Polymers and Plastics
Ethylene oxide
Hydrogen bond
Organic Chemistry
Supramolecular chemistry
General Physics and Astronomy
Nuclear magnetic resonance spectroscopy
chemistry.chemical_compound
Dynamic light scattering
chemistry
Polymerization
Amide
Polymer chemistry
Materials Chemistry
Fourier transform infrared spectroscopy
Subjects
Details
- ISSN :
- 00143057
- Volume :
- 50
- Database :
- OpenAIRE
- Journal :
- European Polymer Journal
- Accession number :
- edsair.doi...........bab6488dcae90d242199af99e7ffd773