Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites
This study provides a route to prepare 4-arm star poly(methyl methacrylate) (4sPMMA)/PMMA grafted SiO2 (PMMA-g-SiO2) hybrid nanocomposites that can be used as 3D printing material and filler for dental materials. First, 4sPMMA was synthesized via atom transfer radical polymerization with low metal c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2018-10-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2018-0016 |
| _version_ | 1819135335840350208 |
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| author | Tham Do Quang Hoang Thai Giang Nguyen Vu Kim Dung Nguyen Thi Chung Ildoo |
| author_facet | Tham Do Quang Hoang Thai Giang Nguyen Vu Kim Dung Nguyen Thi Chung Ildoo |
| author_sort | Tham Do Quang |
| collection | DOAJ |
| description | This study provides a route to prepare 4-arm star poly(methyl methacrylate) (4sPMMA)/PMMA grafted SiO2 (PMMA-g-SiO2) hybrid nanocomposites that can be used as 3D printing material and filler for dental materials. First, 4sPMMA was synthesized via atom transfer radical polymerization with low metal catalyst concentration. Modified colloidal silica nanoparticles (MCSPs) were synthesized by grafting 3-methoxypropyl trimethoxysilane (MPS) onto the surface of colloidal silica nanoparticles (CSPs) and then dispersed in the solution of methyl methacrylate monomer in dioxane. The mixture of 4sPMMA and MCSPs solutions was degassed and replaced in an oil bath at 70–75°C; the reaction was continued with α,α′-azobis(isobutyronitrile) as an initiator for 24 h to form 4sPMMA/PMMA-g-SiO2 hybrid nanocomposites. Viscosity measurement showed that viscosity of the hybrid was increased with increasing MPS loading used in modification of CSPs, which verified that PMMA had been grafted onto MCSPs. Fourier transform infrared spectra of the hybrid nanocomposites demonstrated the strong molecular interaction between MCSPs and polymer matrix, and 1H NMR spectra confirmed the formation of PMMA-g-SiO2. Field emission scanning electron microscopy and transmission electron microscopy images revealed that MCSPs were well dispersed in polymer matrix with the size of about 20–30 nm. Thermal stability of the hybrid nanocomposites was improved compared with PMMA made from free radical polymerization. |
| first_indexed | 2024-12-22T10:17:27Z |
| format | Article |
| id | doaj.art-c6300757b3e647cb9e95626320756557 |
| institution | Directory Open Access Journal |
| issn | 2191-9542 2191-9550 |
| language | English |
| last_indexed | 2024-12-22T10:17:27Z |
| publishDate | 2018-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-c6300757b3e647cb9e956263207565572022-12-21T18:29:43ZengDe GruyterGreen Processing and Synthesis2191-95422191-95502018-10-017539139810.1515/gps-2018-0016Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocompositesTham Do Quang0Hoang Thai1Giang Nguyen Vu2Kim Dung Nguyen Thi3Chung Ildoo4Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamInstitute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamInstitute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamVietnam National Academy of Education Management, 31 Phan Dinh Giot, Thanh Xuan, Hanoi, VietnamDepartment of Polymer Science and Engineering, Pusan National University, Busan 46241, South KoreaThis study provides a route to prepare 4-arm star poly(methyl methacrylate) (4sPMMA)/PMMA grafted SiO2 (PMMA-g-SiO2) hybrid nanocomposites that can be used as 3D printing material and filler for dental materials. First, 4sPMMA was synthesized via atom transfer radical polymerization with low metal catalyst concentration. Modified colloidal silica nanoparticles (MCSPs) were synthesized by grafting 3-methoxypropyl trimethoxysilane (MPS) onto the surface of colloidal silica nanoparticles (CSPs) and then dispersed in the solution of methyl methacrylate monomer in dioxane. The mixture of 4sPMMA and MCSPs solutions was degassed and replaced in an oil bath at 70–75°C; the reaction was continued with α,α′-azobis(isobutyronitrile) as an initiator for 24 h to form 4sPMMA/PMMA-g-SiO2 hybrid nanocomposites. Viscosity measurement showed that viscosity of the hybrid was increased with increasing MPS loading used in modification of CSPs, which verified that PMMA had been grafted onto MCSPs. Fourier transform infrared spectra of the hybrid nanocomposites demonstrated the strong molecular interaction between MCSPs and polymer matrix, and 1H NMR spectra confirmed the formation of PMMA-g-SiO2. Field emission scanning electron microscopy and transmission electron microscopy images revealed that MCSPs were well dispersed in polymer matrix with the size of about 20–30 nm. Thermal stability of the hybrid nanocomposites was improved compared with PMMA made from free radical polymerization.https://doi.org/10.1515/gps-2018-0016hybrid nanocompositemodified colloidal silica particlesmpspmma-g-sio2star polymer |
| spellingShingle | Tham Do Quang Hoang Thai Giang Nguyen Vu Kim Dung Nguyen Thi Chung Ildoo Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites Green Processing and Synthesis hybrid nanocomposite modified colloidal silica particles mps pmma-g-sio2 star polymer |
| title | Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites |
| title_full | Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites |
| title_fullStr | Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites |
| title_full_unstemmed | Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites |
| title_short | Synthesis and characterization of (4-arm-star-PMMA)/PMMA-g-SiO2 hybrid nanocomposites |
| title_sort | synthesis and characterization of 4 arm star pmma pmma g sio2 hybrid nanocomposites |
| topic | hybrid nanocomposite modified colloidal silica particles mps pmma-g-sio2 star polymer |
| url | https://doi.org/10.1515/gps-2018-0016 |
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