Synthesis of hybrid TiO2 nanoparticles with well-defined poly(methyl methacrylate) and poly(tert-butyldimethylsilyl methacrylate) via the RAFT process

Ngo, Van Giang; Bressy, Christine; Leroux, C.; Margaillan, André

doi:10.1016/j.polymer.2009.04.077

Cited by 76 publications

(41 citation statements)

References 48 publications

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“…Nanocomposite materials have been prepared by the grafting-through polymerization of acrylate- [527] or methacrylate-functional [541] titania particles or methacrylate-functional silica particles. [542] The process of formation of polymers that contain active ester functionality or pyridyl disufide functionality as substrates for grafting-to processes (see above) can be considered as additional examples of grafting-through processes.…”

Section: Grafting-to Processesmentioning

confidence: 99%

Living Radical Polymerization by the RAFT Process - A Second Update

Moad¹,

Rizzardo²,

Thang³

2009

Aust. J. Chem.

906

720

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This paper provides a second update to the review of reversible deactivation radical polymerization achieved with thiocarbonylthio compounds (ZC(=S)SR) by a mechanism of reversible addition-fragmentation chain transfer (RAFT) that was published in June 2005 (Aust. J. Chem. 2005, 58, 379-410). The first update was published in November 2006 (Aust. J. Chem. 2006, 59, 669-692). This review cites over 500 papers that appeared during the period mid-2006 to mid-2009 covering various aspects of RAFT polymerization ranging from reagent synthesis and properties, kinetics and mechanism of polymerization, novel polymer syntheses and a diverse range of applications. Significant developments have occurred, particularly in the areas of novel RAFT agents, techniques for end-group removal and transformation, the production of micro/nanoparticles and modified surfaces, and biopolymer conjugates both for therapeutic and diagnostic applications.

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Section: Grafting-to Processesmentioning

confidence: 99%

Living Radical Polymerization by the RAFT Process - A Second Update

Moad¹,

Rizzardo²,

Thang³

2009

Aust. J. Chem.

906

720

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“…Figure 2 Figure 4, and the common analysis method for inorganic particles grafted polymer is used. 35 It is observed that ATP loses 13.63% of the total weight attributed to absorbed water, zeolite water, crystal water, and constitutional water (Figure 4, Curve A). After the surface anchoring of APTES, ACVA, and MAC, the total weight loss attains to 16.8%, 19.4%, and 20.8% respectively ( Figure 4, Curves B-D).…”

Section: Resultsmentioning

confidence: 99%

Preparation of poly(methyl methacrylate)‐grafted attapulgite by surface‐Initiated radical polymerization

Gong

2014

J of Applied Polymer Sci

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Poly(methyl methacrylate) (PMMA) was bonded on the surface of attapulgite (ATP) by using an ammonium persulfate amine redox initiation system via grafting from approach. ATP was modified with (3-aminopropyl)triethoxysilane to anchor amine groups on the surface, and then the amine-functionalized ATP was further treated with methacryloyl chloride and 4,4 0 -azobis(4-cyanovaleric acid) to give methacryl-and azo-functionalized ATP, respectively. Subsequently, surface-initiated graft polymerization of MMA in a soap-free emulsion was performed to afford ATP/PMMA hybrids. Meanwhile, graft polymerizations on the surface of methacryl-and azo-functionalized ATP were carried out for comparison. The grafting of PMMA on the surface of ATP was characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis (TGA). The crystal structure of hybrids was characterized by X-ray diffraction analysis. The morphology of hybrids was observed by scanning electron microscopy and transmission electron microscopy. The degree of grafting obtained from surface-initiated graft polymerization in a soap-free emulsion was found to be the greatest (29.4%) estimated from TGA.

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“…The inherent viscosity of PBIA was 0.53 dL g −1 measured at a concentration of 0. Silane grafting reaction onto the surface of oxide nanoparticles was carried out in ethanol as described previously with some modification [41]. The dried TiO 2 NPs (3.0 g, 37.5 mmol) was added into absolute ethanol (70 mL) and was ultrasonicated for 30 min.…”

Section: Polymer Synthesis (Pbia)mentioning

confidence: 99%

“…Ngo et al [41] and Rong et al [42] have described e x p e r i m e n t a l c o n d i t i o n s u s e d t o a n c h o r (3-methacryloxypropyl)trimethoxysilane (MPS) onto the surface of oxide particles. The mechanism of TiO 2 nanoparticles modification with MPS is illustrated in Scheme 3.…”

Section: Surface Modification Of Tio 2 Nps With Mps (Mps-tio 2 Nps)mentioning

confidence: 99%

Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

Toiserkani

2015

Colloid Polym Sci

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In the present study, novel poly(benzimidazole-amide)/titania (PBIA/TiO 2 ) nanocomposites containing phthalimide and benzimidazole pendent groups with different amounts of modified titania nanoparticles (TiO 2 NPs) were successfully fabricated through ultrasonic irradiation technique. Due to the high surface energy and tendency for agglomeration, the surface TiO 2 NPs was modified by a coupling agent as (3-methacryloxypropyl)trimethoxysilane (MPS) to form MPS-TiO 2 nanoparticles. FTIR spectroscopy confirmed that MPS was successfully grafted onto the TiO 2 nanoparticles surface through Ti-O-Si chemical bonds. Thermogravimetric analysis (TGA) revealed a surface coverage of the coupling molecule of 2.8 wt.%. The resulting nanocomposites were fully characterized by FTIR spectra, X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and TGA. SEM analyses of nanocomposites were performed in order to investigate the dispersion of nanofillers in the PBIA matrix. The TGA results of PBIA/TiO 2 nanocomposites showed that the thermal stability is obviously improved the presence of MPS-TiO 2 NPs in comparison with the pure PBIA and that this increase is higher when the NP content increases.

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Synthesis of hybrid TiO2 nanoparticles with well-defined poly(methyl methacrylate) and poly(tert-butyldimethylsilyl methacrylate) via the RAFT process

Cited by 76 publications

References 48 publications

Living Radical Polymerization by the RAFT Process - A Second Update

Living Radical Polymerization by the RAFT Process - A Second Update

Preparation of poly(methyl methacrylate)‐grafted attapulgite by surface‐Initiated radical polymerization

Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

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