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Palygorskite/polystyrene nanocomposites via facile in-situ bulk polymerization: Gelation and thermal properties
Abstract Novel palygorskite/polystyrene (PLG/PS) nanocomposites were synthesized via the facile in-situ bulk radical polymerization of styrene in the presence of the organo-palygorskite (Org-PLG) nanorods, which was prepared by the modification of the acid-activated palygorskite (A-PLG) nanorods with the functional silane (γ-methacryloxypropyl trimethoxy silane (MPS)). The micro-gels with the Org-PLG nanorods as crosslinker were produced in the PLG/PS nanocomposites regardless of the polymerizing conditions, such as the feeding ratios of the Org-PLG, initiator and N2 atmosphere. Based on the gelation and thermal properties of the PLG/PS nanocomposites, the optimal preparation condition via the in-situ bulk polymerization was achieved and the crosslinking mechanism to the micro-gels was also depicted. This understanding should lead to a better design of clay mineral modifications for use in polymer nanocomposites.
Highlights Novel PLG/PS nanocomposites were synthesized via in-situ bulk polymerization. Functional Org-PLG nanorods acted as the crosslinker in the polymerization. The micro-gels were found in the PLG/PS nanocomposites. The PLG/PS nanocomposites showed the enhanced thermal properties.
Palygorskite/polystyrene nanocomposites via facile in-situ bulk polymerization: Gelation and thermal properties
Abstract Novel palygorskite/polystyrene (PLG/PS) nanocomposites were synthesized via the facile in-situ bulk radical polymerization of styrene in the presence of the organo-palygorskite (Org-PLG) nanorods, which was prepared by the modification of the acid-activated palygorskite (A-PLG) nanorods with the functional silane (γ-methacryloxypropyl trimethoxy silane (MPS)). The micro-gels with the Org-PLG nanorods as crosslinker were produced in the PLG/PS nanocomposites regardless of the polymerizing conditions, such as the feeding ratios of the Org-PLG, initiator and N2 atmosphere. Based on the gelation and thermal properties of the PLG/PS nanocomposites, the optimal preparation condition via the in-situ bulk polymerization was achieved and the crosslinking mechanism to the micro-gels was also depicted. This understanding should lead to a better design of clay mineral modifications for use in polymer nanocomposites.
Highlights Novel PLG/PS nanocomposites were synthesized via in-situ bulk polymerization. Functional Org-PLG nanorods acted as the crosslinker in the polymerization. The micro-gels were found in the PLG/PS nanocomposites. The PLG/PS nanocomposites showed the enhanced thermal properties.
Palygorskite/polystyrene nanocomposites via facile in-situ bulk polymerization: Gelation and thermal properties
Liu, Peng (author) / Zhu, Longxiang (author) / Guo, Jinshan (author) / Wang, Aiqin (author) / Zhao, Yi (author) / Wang, Zeran (author)
Applied Clay Science ; 100 ; 95-101
2014-06-19
7 pages
Article (Journal)
Electronic Resource
English
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