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| Content Provider | Springer Nature Link |
|---|---|
| Author | Honarkar, Hengameh Barmar, Mohammad Barikani, Mehdi Shokrollahi, Parvin |
| Copyright Year | 2016 |
| Abstract | A series of aqueous polyurethane nanocomposites were prepared using various amounts (0.3-4.6 wt%) of a diol functionalized polyhedral oligomeric silsesquioxane (POSS) by the prepolymer mixing method. N,N-bis(2-hydroxy ethyl-2-amino ethane sulfonic acid sodium salt (BES sodium salt) was used as the anionic internal emulsifier and ionic center. The molecular structure of the samples was characterized by ATR-FTIR spectroscopy. We investigated the effect of the POSS contents on the properties of the specimens by particle size and viscosity measurements, X-ray diffractometry, mechanical behavior assessment, dynamic mechanical thermal analysis (DMTA), thermogravimetric analysis and morphological studies. The results showed that with increasing the POSS contents, particle size, viscosity, tensile strength, modulus, T$_{ g }$, and thermal stability of the synthesized samples were improved. Also, SEM and TEM images indicated that a homogeneous morphology was obtained in the 1.2 wt% POSS-based sample. AFM results showed that the surface roughness increased as the POSS amounts increased. |
| Starting Page | 319 |
| Ending Page | 329 |
| Page Count | 11 |
| File Format | |
| ISSN | 02561115 |
| Journal | Korean Journal of Chemical Engineering |
| Volume Number | 33 |
| Issue Number | 1 |
| e-ISSN | 19757220 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-08-17 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Nanocomposites Aqueous Polyurethane POSS Anionic Emulsifier Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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