Preparation of Thermoresponsive Polymer Nanogels of Oligo(Ethylene Glycol) Diacrylate-Methacrylic Acid and Their Property Characterization
| Autor: | Fenghao Guo, Xiang Zheng Kong, Zhiyong Chen, Hongyan Cao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Morphology (linguistics) Nanochemistry 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound Oligo(ethylene glycol) diacrylate lcsh:TA401-492 General Materials Science Thermoresponsive chemistry.chemical_classification Ethanol Crosslinking Nano Express Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics Methacrylic acid 0104 chemical sciences Characterization (materials science) chemistry Chemical engineering Precipitation polymerization Volume phase transition lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology Ethylene glycol |
| Zdroj: | Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-10 (2018) Nanoscale Research Letters |
| ISSN: | 1931-7573 |
| Popis: | Stimuli-responsive polymers have received growing attention in recent years owing to their wide applications in diverse fields. A novel stimuli-responsive polymer, based on oligo(ethylene glycol) diacrylate (OEGDA) and methacrylic acid (MAA), P(OEGDA-MAA), is prepared by precipitation polymerization and is shown to have a LCST-type VPTT (volume phase transition temperature) at 33 °C in water and a UCST-type VPTT at 43 °C in ethanol, all at concentration of 1 mg/mL. Both VPTTs are strongly concentration and pH dependent, providing an easy way to tune the phase transition temperature. The polymer is characterized with regard to its composition and its morphology in water and in ethanol at different concentration. The two transitions are studied and interpreted based on the results. This work provides a novel way for the preparation of a new type of stimuli-responsive polymer with great potential for different applications, particularly those in biomedical areas because PEG-based stimuli-responsive polymers are known to be nontoxic and non-immunogenic. Electronic supplementary material The online version of this article (10.1186/s11671-018-2610-6) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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