Poly(methylmethacrylate)-silica nanocomposites films from surface-functionalized silica nanoparticles

Liu, Ying‐Ling; Hsu, Cheng‐Hsing; Hsu, Keh‐Ying

doi:10.1016/j.polymer.2005.01.009

Cited by 111 publications

(68 citation statements)

References 13 publications

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“…5a). The presence of silica nanoparticles might not significantly alter the degradation behavior of sPPEK polymer [28]. However, alteration of the thermal degradation behaviors was observed with NM-SA membranes.…”

Section: Thermal Stability Of Sppek/silica-so 3 H Nanocomposite Membrmentioning

confidence: 87%

Proton exchange membranes modified with sulfonated silica nanoparticles for direct methanol fuel cells☆

Liu

Sun

et al. 2007

Journal of Membrane Science

153

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Nanocomposite proton exchange membranes were prepared from sulfonated poly(phthalazinone ether ketone) (sPPEK) and various amounts of sulfonated silica nanoparticles (silica-SO 3 H). The use of silica-SO 3 H compensates for the decrease in ion exchange capacity of membranes observed when non-sulfonated nano-fillers are utilized. The strong -SO 3 H/-SO 3 H interaction between sPPEK chains and silica-SO 3 H particles leads to ionic cross-linking in the membrane structure, which increases both the thermal stability and methanol resistance of the membranes. The membrane with 7.5 phr of silica-SO 3 H (phr = g of silica-SO 3 H/100 g of sPPEK in membranes) exhibits low methanol crossover, high bound-water content, and a proton conductivity of 3.6 fold increase to that of the pristine sPPEK membrane.

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Section: Thermal Stability Of Sppek/silica-so 3 H Nanocomposite Membrmentioning

confidence: 87%

Proton exchange membranes modified with sulfonated silica nanoparticles for direct methanol fuel cells☆

Liu

Sun

et al. 2007

Journal of Membrane Science

153

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“…An increase of T d5 is generally considered as an indication of enhancement of thermal stability. 32,33 The T d5 for CF-PD series free films, however, is lower than that of the free films of CF-0 and CF-ED series of corresponding diamond content. Several possible causes can be suggested for this enhancement of tensile strength and the thermal stability of CF-ED series free films, such as the incorporation of the ED particles in the binder agent matrix, the reaction of the epoxide group on the ED surface with the EEC component in the binder agent to enhance the interfacial force between the ED and the matrix, or the increase of the interfacial force with the amount of ED added.…”

Section: Properties Of Free Filmsmentioning

confidence: 89%

Coating films prepared by photoreactions of the surface‐modified diamond powder and PET film with a binder agent

Hsu

Lin

et al. 2010

J of Applied Polymer Sci

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ABSTRACT:The surface-modified diamond and PET film underwent photopolymerization rapidly with a binder agent to afford coating films of interpenetrating network (IPN) structure. The coating films thus formed exhibit higher tensile strength, thermal stability, and adhesion strength to the PET film. The inert surfaces of pristine diamond (PD) and PET film were modified by different chemicals and procedures to introduce epoxide and methacryloyl groups, respectively, on their surfaces. A coating agent consisting of an epoxide group containing modified diamond (called ED), a binder agent, and photoinitiators was prepared. After applying the coating agent to the substrate (a glass plate or a methacryloyl group containing PET film, MMA-PET) and degassing under reduced pressure, the thin film of the coating agent was exposed to UV light (k max ; 365 nm) at room temperature to yield a coating film of IPN-structure. The tensile strength and thermal properties of the ED-containing free coating film (called free film) increased with the amount of ED embedded, whereas the strength of the PD-containing free film decreased with the amount of PD embedded. The adhesion strength of the coating film on the MMA-PET improved significantly by the free radical polymerization of the methacryloyl groups on the MMA-PET and the acrylate resin in the binder agent. The surface photoreactions of ED and MMA-PET with the binder agent were confirmed by modeling.

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“…In the recent past many studies have been devoted to organic/inorganic nanocomposites with the aim of combining the properties of both phases at the nanoscale level. Polymer/silica nanocomposites have been prepared by physically mixing silica nanoparticles with polymers [24,25] or by copolymerization of the organic polymers with surfacefunctionalized silica nanoparticles [26,27]. Various surface modification techniques have also been proposed aiming to enhance the bioactivity of polymer surfaces.…”

Section: Introductionmentioning

confidence: 99%

Structure and biological response of polymer/silica nanocomposites prepared by sol–gel technique

Vallés-Lluch

Costa

Ferrer

et al. 2010

Composites Science and Technology

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To cite this version:A. Vallés-Lluch, E. Costa, G. Gallego Ferrer, M. Monleón Pradas, M. Salmerón-Sánchez. Structure and biological response of polymer/silica nanocomposites prepared by sol-gel technique. Composites Science and Technology, Elsevier, 2010, 70 (13) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. While chondrocytes adhered and proliferated, dental pulp cells formed viable aggregates weakly adhered on the sample that were viable up to 11 days. The results suggest that these sol-gel derived nancomposites may be used as culture surfaces maintaining the dental pulp cell phenotype in vitro.

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Poly(methylmethacrylate)-silica nanocomposites films from surface-functionalized silica nanoparticles

Cited by 111 publications

References 13 publications

Proton exchange membranes modified with sulfonated silica nanoparticles for direct methanol fuel cells☆

Proton exchange membranes modified with sulfonated silica nanoparticles for direct methanol fuel cells☆

Coating films prepared by photoreactions of the surface‐modified diamond powder and PET film with a binder agent

Structure and biological response of polymer/silica nanocomposites prepared by sol–gel technique

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