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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sobhanimatin, Mohammad Bagher Pourmahdian, Saeed |
| Copyright Year | 2016 |
| Abstract | Inverse emulsion copolymerization of acrylamide and AMPS was conducted, and the effects of cross-linker concentration, initiator type, and reaction temperature on particle size distribution, equilibrium swelling and thermal properties were studied. Fourier transform infrared spectrophotometry (FTIR) and differential scanning calorimetry (DSC) results were used to confirm the copolymerization of the monomers. In this study, relatively high amounts of AMPS comonomer were used successfully to synthesize AAm/AMPS based microgels. Thermal properties were determined using thermogravimetric analysis (TGA) and it was found that degradation threshold shifted to higher temperatures with increasing cross-linking. There was a good agreement between the DSC and TGA thermograms depicting the different stages of microgel degradation including the departure of amide and sulphonic acid groups. Dynamic light scattering (DLS) demonstrated that higher cross-link densities resulted in the formation of smaller particles with narrower distribution and lower swelling capacity. The results of scanning electron microscopy (SEM) showed that the more hydrophobicity of the initiator led to the decrease in particle size and swelling capability. Swelling ratio reached its maximum value at about 50 °C. Interestingly, mean particle size had a close relation with equilibrium swelling as samples with lower mean particle diameters exhibited lower swelling capacities. |
| Starting Page | 405 |
| Ending Page | 413 |
| Page Count | 9 |
| File Format | |
| ISSN | 10261265 |
| Journal | Iranian Polymer Journal |
| Volume Number | 25 |
| Issue Number | 5 |
| e-ISSN | 17355265 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2016-04-20 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Polymer Sciences Acrylamide AMPS Swelling Microgels Ceramics, Glass, Composites, Natural Methods Inverse emulsion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Chemistry Chemical Engineering Polymers and Plastics |
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