Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles
A comparative study on the self-assembled nanostructured morphology and the rheological and mechanical properties of four different triblock copolymers, based on poly(styrene-block-diene-block-styrene) and poly(styrene-block-diene-block-styrene) matrices, and of their respective nanocomposites with...
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
Budapest University of Technology
2011-02-01
|
| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0001802&mi=cd |
| _version_ | 1818827169761067008 |
|---|---|
| collection | DOAJ |
| description | A comparative study on the self-assembled nanostructured morphology and the rheological and mechanical properties of four different triblock copolymers, based on poly(styrene-block-diene-block-styrene) and poly(styrene-block-diene-block-styrene) matrices, and of their respective nanocomposites with 1 wt% silver nanoparticles, is reported in this work. In order to obtain well-dispersed nanoparticles in the block copolymer matrix, dodecanethiol was used as surfactant, showing good affinity with both nanoparticles and the polystyrene phase of the matrices as predicted by the solubility parameters calculated based on Hoftyzer and Van Krevelen theory. The block copolymer with the highest PS content shows the highest tensile modulus and tensile strength, but also the smallest elongation at break. When silver nanoparticles treated with surfactant were added to the block copolymer matrices, each system studied shows higher mechanical properties due to the good dispersion and the good interface of Ag nanoparticles in the matrices. Furthermore, it has been shown that semiempirical models such as Guth and Gold equation and Halpin-Tsai model can be used to predict the tensile modulus of the analyzed nanocomposites. |
| first_indexed | 2024-12-19T00:39:17Z |
| format | Article |
| id | doaj.art-20eb96a173a0452f977e85e565594225 |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-12-19T00:39:17Z |
| publishDate | 2011-02-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-20eb96a173a0452f977e85e5655942252022-12-21T20:44:39ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2011-02-015210411810.3144/expresspolymlett.2011.12Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticlesA comparative study on the self-assembled nanostructured morphology and the rheological and mechanical properties of four different triblock copolymers, based on poly(styrene-block-diene-block-styrene) and poly(styrene-block-diene-block-styrene) matrices, and of their respective nanocomposites with 1 wt% silver nanoparticles, is reported in this work. In order to obtain well-dispersed nanoparticles in the block copolymer matrix, dodecanethiol was used as surfactant, showing good affinity with both nanoparticles and the polystyrene phase of the matrices as predicted by the solubility parameters calculated based on Hoftyzer and Van Krevelen theory. The block copolymer with the highest PS content shows the highest tensile modulus and tensile strength, but also the smallest elongation at break. When silver nanoparticles treated with surfactant were added to the block copolymer matrices, each system studied shows higher mechanical properties due to the good dispersion and the good interface of Ag nanoparticles in the matrices. Furthermore, it has been shown that semiempirical models such as Guth and Gold equation and Halpin-Tsai model can be used to predict the tensile modulus of the analyzed nanocomposites.http://www.expresspolymlett.com/letolt.php?file=EPL-0001802&mi=cdNanocompositesBlock copolymerAtomic force microscopyrheologymechanical properties |
| spellingShingle | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles eXPRESS Polymer Letters Nanocomposites Block copolymer Atomic force microscopy rheology mechanical properties |
| title | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles |
| title_full | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles |
| title_fullStr | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles |
| title_full_unstemmed | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles |
| title_short | Morphology-properties relationship on nanocomposite films based on poly(styrene-block-diene-block-styrene) copolymers and silver nanoparticles |
| title_sort | morphology properties relationship on nanocomposite films based on poly styrene block diene block styrene copolymers and silver nanoparticles |
| topic | Nanocomposites Block copolymer Atomic force microscopy rheology mechanical properties |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0001802&mi=cd |