Sage Journals: Discover world-class research

Abstract

The aim of this research is to evaluate the effect of silica nanoparticles (SNs) modification on the physicochemical properties of some hybrid nanocomposites. SNs with high specific surface area were silanized by two complementary mechanisms using organosilanes with different functionalities, 3-methacryloxypropyltrimethoxysilane (MPS), octyltrimethoxysilane (OTMS) or a mixture of them in order to generate a different interphase between the filler and the polymeric matrix. The SN silanization efficiency was investigated using Fourier transform infrared spectra, x-ray photoelectron spectroscopy, transmission electron microscopy and thermogravimetric analysis (TGA). Several types of hybrid nanocomposites based on dimethacrylate monomer and SN were synthesized by bulk polymerization process. The influence of the silanized SN on the methacrylic groups reactivity was studied using differential scanning calorimetry, and the thermostability of the hybrid nanocomposites was revealed by TGA. Additionally, the dynamic thermomechanical properties of the hybrid nanocomposites were determined by Dynamic Mechanical Analysis (DMA).

Keywords

nanosilica organosilanes dimethacrylates

Get full access to this article

View all access options for this article.

References

Radhakrishnan

Constable

Brittain

WJ.

A novel route to organic–inorganic hybrid nanomaterials. Macromol Rapid Comm 2008; 29: 1828–1833.

Xie

Hill

CAS

Xiao

Militz

Mai

. Silane coupling agents used for natural fiber/polymer composites: A review. Compos A 2010; 41: 806–819.

Antonucci

Dickens

Fowler

HHK

McDonough

. Interfaces in dental polymers and composite. J Res Natl Inst Stand 2005; 110: 541–558.

Wilson

Antonucci

. Interphase structure–property relationships in thermoset dimethacrylate nanocomposites. Dent Mater 2006; 22: 995–1001.

Sideridou

Karabela

. Effect of the amount of 3-methacyloxypropyltrimethoxysilane coupling agent on physical properties of dental resin nanocomposites. Dent Mater 2009; 25: 1315–1324.

Vrancken

Possemiers

Van Der Voort

Vansant

. Surface modification of silica gels with aminoorganosilanes. Colloid Surface Physicochem Eng Aspect 1995; 98: 235–241.

Daniels

Francis

LFJ

. Silane adsorption behavior, microstructure, and properties of glycidoxypropyltrimethoxysilane-modified colloidal silica coatings. Colloid Interface Sci 1998; 205: 191–200.

Guo

. The influence of silane treatment on nylon 6/nano-SiO₂ in situ polymerization. J Appl Polymer Sci 2002; 84: 827–834.

Hsu

Pan

Chern

. Silica nanoparticles modified with vinyltriethoxysilane and their copolymerization with N,N'-bismaleimide-4,4'-diphenylmethane. J Appl Polymer Sci 2007; 103: 3600–3608.

10.

Liu

Ding

Chambers

Debnath

Wunder

Baran

. Filler-coupling agent-matrix interactions in silica/polymethylmethacrylate composites. J Biomed Mater Res 2001; 57: 384–393.

11.

Karabela

Sideridou

. Effect of the structure of silane coupling agent on sorption characteristics of solvents by dental resin-nanocomposites. Dent mater 2008; 24: 1631–1639.

12.

Sideridou

Karabela

. Effect of the structure of silane-coupling agent on dynamic mechanical properties of dental resin-nanocomposites. J Appl Polymer Sci 2008; 110: 507–516.

13.

Wilson

Zhang

Antonucci

. Systematic variation of interfacial phase reactivity in dental nanocomposites. Biomater 2005; 26: 5095–5103.

14.

Wilson

Allen

Washburn

Antonucci

. Interphase effects in dental nanocomposites investigated by small-angle neutron scattering. J Biomed Mater Res 2007; 81A: 113–123.

15.

Stanescu

Florea

Lungu

Iovu

. Kinetic study on the thermal degradation of UDMA-BisGMA copolymers. Materiale Plastice 2011; 48: 148–153.

16.

Achilias

Karabela

Sideridou

. Thermal degradation and isoconversional kinetic analysis of light-cured dimethacrylate copolymers. J Therm Anal Calorim 2010; 99: 917–923.

The influence of nanosilica functionalization on the properties of hybrid nanocomposites

Abstract

Keywords

Get full access to this article

References