Structural and thermal properties of polystyrene nanocomposites containing hydrophilic and hydrophobic layered double hydroxides
Source abstract
Abstract
Abstract Zn–Al layered double hydroxide (LDH) was synthesized and modified using sodium dodecyl benzene sulfonate (DBS). Hydrophilic and hydrophobic LDHs were applied as fillers in a free-emulsion polymerization of styrene monomer, which enhance their thermal stability, and strengthen their structure. In order to increase structural stability we modified the surface of LDH with anionic surfactant and examined its effect on the exfoliation in the polystyrene (PS) matrix. The structure of polystyrene–LDH nanocomposites was investigated by X-ray diffraction pattern technique (XRD), and small angle X-ray scattering (SAXS). Furthermore, thermal analysis (TGA and DSC) was evaluated and the prepared nanocomposites show significantly improved thermal stability at higher temperature. Both XRD and SAXS results confirmed the totally delaminated state of the LDH in the polymer matrix. It was established that the hydrophilic filler has a better exfoliation effect than the hydrophobic LDH in the hydrophobic polymer structure.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Magnesium Oxide Properties and Applications · Flame retardant materials and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Structural characterization of arsenate ion exchanged MgAl-layered double hydroxide10.1016/j.clay.2009.01.017 ↗
2. Synthesis of exfoliated PMMA/Na-MMT Nanocomposites via soap-free emulsion polymerization10.1021/ma0106494 ↗
3. Liquid adsorption and immersional wetting on hydrophilic hydrophobic solid-surfaces10.1351/pac199264101499 ↗
4. Interlamellar adsorption of 1-pentanol from aqueous solution on hydrophobic clay mineral10.1016/S0927-7757(96)03738-7 ↗
5. Hydrophobic layered double hydroxides (LDHs): selective adsorbents for liquid mixtures10.1007/s003960050135 ↗
6. Synthesis and characterization of exfoliated polystyrene/ZnAl layered double hydroxide nanocomposites via emulsion polymerization10.1016/j.jcis.2005.08.056 ↗
7. Preparation of ultrathin membranes by layer-by-layer (LBL) deposition of oppositely charged inorganic colloids10.1007/s00396-005-1405-3 ↗
8. Reactive and funcionalized LDH fillers for polymer10.1016/j.jpcs.2007.10.019 ↗
9. Surface-chemistry of emulsion polymerization10.1021/la00029a012 ↗
10. Photooxidation of organic dye molecules in TiO2 and zinc-aluminum double hydroxide ultrathin multilayers10.1016/j.colsurfa.2005.02.044 ↗
11. Intercalation and exchange reactions of clay minerals and non-clay layer compounds10.1007/BF00652529 ↗
12. Adsorption on hydrophobized surfaces: clusters and self-organization10.1016/j.cis.2004.07.015 ↗
13. Characterization and photooxidative behaviour of nanocomposites formed with polystyrene and LDHs organo-modified by monomer surfactant10.1016/j.polymer.2005.03.044 ↗
14. Synthesis and characterization of poly(styrene-co-methyl methacrylate)/layered double hydroxide nanocomposites via in situ polymerization10.1016/j.polymdegradstab.2008.10.001 ↗
15. Anion-exchange reaction of layered double hydroxides10.1021/ic00351a013 ↗
16. Adsorption of styrene sulfonate vs. polystyrene sulfonate on layered double hydroxides10.1016/S1387-1811(02)00505-X ↗
17. Does organic modification of layered double hydroxides improve the fire performance of PMMA?10.1016/j.polymdegradstab.2009.03.023 ↗
18. Uniform polystyrene microspheres decorated with noble metal nanoparticles formed without using extra reducing agent10.1016/j.colsurfa.2007.04.038 ↗
19. ZnAl-layer double hydroxides as photocatalysts for oxidation of phenol in aqueous solution10.1016/j.colsurfa.2005.01.039 ↗
20. Preparation and characterization of surfactant-free polystyrene/layered double hydroxide exfoliated nanocomposite via soap-free emulsion polymerization10.1016/j.jcis.2006.05.049 ↗
21. Structural characterisation and thermal properties of exfoliated polystyrene/ZnAl layered double hydroxide nanocomposites prepared via solution intercalation10.1016/j.polymdegradstab.2004.09.009 ↗
22. LDH-dye hybrid material as coloured filler into polystyrene: structural characterization and rheological properties10.1016/j.jpcs.2007.03.003 ↗
23. Kinetics of the thermal and thermo-oxidative degradation of polystyrene-clay nanocomposites10.1002/marc.200300214 ↗
24. Preparation of submicrometer-sized clusters from polymer spheres using ultrasonication10.1021/la802580k ↗
25. Coagulation of latex dispersions in the presence of some organic compounds10.1016/0166-6622(87)80222-6 ↗