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Manhart J, Ayalur-Karunakaran S, Radl S, Oesterreicher A, Moser A, Ganser C, Teichert C, Pinter G, Kern W, Griesser T, Schlögl S. Data on synthesis and thermo-mechanical properties of stimuli-responsive rubber materials bearing pendant anthracene groups. Data Brief 2016; 9:524-529. [PMID: 27747267 PMCID: PMC5054239 DOI: 10.1016/j.dib.2016.09.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 09/09/2016] [Accepted: 09/16/2016] [Indexed: 11/18/2022] Open
Abstract
The photo-reversible [4πs+4πs] cycloaddition reaction of pendant anthracene moieties represents a convenient strategy to impart wavelength dependent properties into hydrogenated carboxylated nitrile butadiene rubber (HXNBR) networks. The present article provides the 1H NMR data on the reaction kinetics of the side chain functionalization of HXNBR. 2-(Anthracene-9-yl)oxirane with reactive epoxy groups is covalently attached to the polymer side chain of HXNBR via ring opening reaction between the epoxy and the carboxylic groups. Along with the identification, 1H NMR data on the quantification of the attached functional groups are shown in dependence on reaction time and concentration of 2-(anthracene-9-yl)oxirane. Changes in the modification yield are reflected in the mechanical properties and DMA data of photo-responsive elastomers are illustrated in dependence on the number of attached anthracene groups. DMA curves over repeated cycles of UV induced crosslinking (λ>300 nm) and UV induced cleavage (λ=254 nm) are further depicted, demonstrating the photo-reversibility of the thermo-mechanical properties. Interpretation and discussion of the data are provided in “Design and application of photo-reversible elastomer networks by using the [4πs+4πs] cycloaddition reaction of pendant anthracene groups” (Manhart et al., 2016) [1].
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Affiliation(s)
- Jakob Manhart
- Polymer Competence Center Leoben GmbH, Roseggerstraße 12, A-8700 Leoben, Austria
| | | | - Simone Radl
- Polymer Competence Center Leoben GmbH, Roseggerstraße 12, A-8700 Leoben, Austria
| | - Andreas Oesterreicher
- Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
| | - Andreas Moser
- Chair of Materials Science and Testing of Plastics, University of Leoben, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
| | - Christian Ganser
- Institute of Physics, University of Leoben, Franz Josef – Straße 18, A-8700 Leoben, Austria
- Christian Doppler Laboratory for Fiber Swelling and Paper Performance, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
| | - Christian Teichert
- Institute of Physics, University of Leoben, Franz Josef – Straße 18, A-8700 Leoben, Austria
| | - Gerald Pinter
- Chair of Materials Science and Testing of Plastics, University of Leoben, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
| | - Wolfgang Kern
- Polymer Competence Center Leoben GmbH, Roseggerstraße 12, A-8700 Leoben, Austria
- Chair of Chemistry of Polymeric Materials, University of Leoben, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
| | - Thomas Griesser
- Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
- Chair of Chemistry of Polymeric Materials, University of Leoben, Otto Glöckel-Straße 2, A-8700 Leoben, Austria
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstraße 12, A-8700 Leoben, Austria
- Corresponding author.
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Oesterreicher A, Gorsche C, Ayalur-Karunakaran S, Moser A, Edler M, Pinter G, Schlögl S, Liska R, Griesser T. Exploring Network Formation of Tough and Biocompatible Thiol-yne Based Photopolymers. Macromol Rapid Commun 2016; 37:1701-1706. [PMID: 27573508 DOI: 10.1002/marc.201600369] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/18/2016] [Indexed: 11/09/2022]
Abstract
This work deals with the in-depth investigation of thiol-yne based network formation and its effect on thermomechanical properties and impact strength. The results show that the bifunctional alkyne monomer di(but-1-yne-4-yl)carbonate (DBC) provides significantly lower cytotoxicity than the comparable acrylate, 1,4-butanediol diacrylate (BDA). Real-time near infrared photorheology measurements reveal that gel formation is shifted to higher conversions for DBC/thiol resins leading to lower shrinkage stress and higher overall monomer conversion than BDA. Glass transition temperature (Tg ), shrinkage stress, as well as network density determined by double quantum solid state NMR, increase proportionally with the thiol functionality. Most importantly, highly cross-linked DBC/dipentaerythritol hexa(3-mercaptopropionate) networks (Tg ≈ 61 °C) provide a 5.3 times higher impact strength than BDA, which is explained by the unique network homogeneity of thiol-yne photopolymers.
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Affiliation(s)
- Andreas Oesterreicher
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks, University of Leoben, Otto-Glöckel-Strasse 2, A-8700, Leoben, Austria
| | - Christian Gorsche
- Institute of Applied Synthetic Chemistry & Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry, TU Wien, Getreidemarkt 9/163-MC, 1060, Vienna, Austria
| | | | - Andreas Moser
- Chair of Material Science and Testing of Polymers, University of Leoben, Otto-Glöckel-Strasse 2, A-8700, Leoben, Austria
| | - Matthias Edler
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks, University of Leoben, Otto-Glöckel-Strasse 2, A-8700, Leoben, Austria
| | - Gerald Pinter
- Chair of Material Science and Testing of Polymers, University of Leoben, Otto-Glöckel-Strasse 2, A-8700, Leoben, Austria
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700, Leoben, Austria
| | - Robert Liska
- Institute of Applied Synthetic Chemistry & Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry, TU Wien, Getreidemarkt 9/163-MC, 1060, Vienna, Austria
| | - Thomas Griesser
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks, University of Leoben, Otto-Glöckel-Strasse 2, A-8700, Leoben, Austria.
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Oesterreicher A, Ayalur-Karunakaran S, Moser A, Mostegel FH, Edler M, Kaschnitz P, Pinter G, Trimmel G, Schlögl S, Griesser T. Exploring thiol-yne based monomers as low cytotoxic building blocks for radical photopolymerization. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28239] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Andreas Oesterreicher
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
| | | | - Andreas Moser
- Chair of Material Science and Testing of Polymers; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
| | - Florian H. Mostegel
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
| | - Matthias Edler
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
| | - Petra Kaschnitz
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, University of Technology; Stremayrgasse 9 Graz 8010 Austria
| | - Gerald Pinter
- Chair of Material Science and Testing of Polymers; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
| | - Gregor Trimmel
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, University of Technology; Stremayrgasse 9 Graz 8010 Austria
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH; Roseggerstrasse 12 Leoben 8700 Austria
| | - Thomas Griesser
- Chair of Chemistry of Polymeric Materials & Christian Doppler Laboratory for Functional and Polymer Based Ink-Jet Inks; University of Leoben; Otto-Glöckel-Strasse 2 Leoben 8700 Austria
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Abstract
Thin films of weakly adsorbing poly(dimethyl siloxane) (PDMS) on porous alumina are examined with NMR fast field cycling (FFC) relaxometry and NMR transverse relaxometry. The longitudinal relaxation dispersion of polymer amounts corresponding to approximate monolayer coverage shows substantial deviation from the bulk and is characterized by a particularly weak temperature dependence. Thicker films, however, show relaxation behavior and temperature dependence more similar to the bulk polymer. Transverse relaxation times were found to cover a range of several orders of magnitudes for any sample investigated; their dependence on temperature is a function of the total amount of adsorbed polymer. While thick films see an overall increase of molecular mobility at higher temperatures, monolayer films are best characterized by the decreasing fraction of a short, i.e. relatively rigid, component. These effects are consistent with the concept of two regions, one in which chain dynamics deviate from bulk and another where chain dynamics are reduced but bulk-like, although chains inside each region may also experience motional heterogeneity.
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Affiliation(s)
- S Ayalur-Karunakaran
- Department of Macromolecular Chemistry, ITMC, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
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Ayalur-Karunakaran S, Blümich B, Stapf S. NMR investigations of polymer dynamics in a partially filled porous matrix. Eur Phys J E Soft Matter 2008; 26:43-53. [PMID: 18496646 DOI: 10.1140/epje/i2007-10341-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2007] [Accepted: 05/16/2008] [Indexed: 05/26/2023]
Abstract
The interior surface of well-defined porous alumina membranes (Anopore) of 20 nm and 200 nm pore diameter, respectively, was coated with polymer layers generated from solution by the solvent evaporation method. Deposits of poly(dimethyl siloxane) (PDMS) with nominal thicknesses ranging from 0.15 to 4.5 nm --corresponding to submonolayer to multilayer films--were investigated, and were compared to poly(butadiene) (PB) as an example for non-wetting polymers. Molecular weights below and above the critical value were studied since the bulk dynamics of such polymers are known to be qualitatively different. First results of NMR relaxation dispersion experiments on these systems are presented, supplemented by transverse relaxation times and double-quantum measurements obtained from high-field NMR. A systematic decrease of relaxation times at low fields with decreasing polymer amount is found for PDMS, but molecules retain a high degree of mobility irrespective of molecular weight. The relaxation dispersion results are supported by T2 data and 1H residual dipolar coupling (RDC) constants, and are discussed in terms of molecular order and reorientational dynamics.
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