Effect of particle reinforcement on the progressive failure of alumina trihydrate filled Poly(Methyl methacrylate)
2
Citation
80
Reference
10
Related Paper
Citation Trend
Keywords:
Particle (ecology)
Characterization
Poly(N-isopropylacrylamide)
Poly(N-isopropylacrylamide)
Cite
Citations (0)
Silver nanoparticles with 5–10 nm diameters are synthesised using Couroupita guianensis flower extract. The synthesised silver nanoparticles found to show good antimicrobial activity against gram negative and gram positive bacteria. Poly(methyl methacrylate) nanofibers with pristine, surface roughened and coaxial hollow forms are prepared by electrospinning. The structural and morphological properties of these pure and structurally modified poly(methyl methacrylate) nanofibers are evidenced by various analytical techniques. The antimicrobial studies of poly(methyl methacrylate) nanofibers having different architectures incorporated with silver nanoparticles are carried out. It is found that, all the three forms of poly(methyl methacrylate) nanofibers incorporated with silver nanoparticles show antibacterial properties against both gram positive and gram negative bacteria. Among these, surface roughened poly(methyl methacrylate) nanofibers incorporated with silver nanoparticles show highest antibacterial activity than the other two structural forms. The present study offers an alternative to the existing optical lenses. People especially those who suffer from eye problems can protect their eyes in a better way from infectious agents by wearing optical lens made from C. guianensis stabilised silver nanoparticles incorporated poly(methyl methacrylate) nanofibers than that made from pure poly(methyl methacrylate) nanofibers or films.
Poly(N-isopropylacrylamide)
Electrospinning
Silver nanoparticle
Cite
Citations (4)
Poly(methyl methacrylate) is an important acrylic thermoplastic polymer. Poly(methyl methacrylate) is a transparent and rigid synthetic plastic. There has been growing interest in developing high performance poly(methyl methacrylate)-based nanocomposites. This article reviews a few important poly(methyl methacrylate)-based nanocomposites and composites. An extended account of the poly(methyl methacrylate) nanocomposites with carbonaceous nanofillers and fillers is given. The physical properties and how to manufacture poly(methyl methacrylate)/carbon nanotube, poly(methyl methacrylate)/carbon black, and poly(methyl methacrylate)/carbon fiber materials are appraised. The research so far shows that the mechanical, thermal, conducting, and microstructural performances improved compared with pure poly(methyl methacrylate). In order to further enhance the poly(methyl methacrylate) material performance, chemically modifying the carbonaceous fillers and chemical affinity with the polymer matrix are necessary. The main challenges here are to obtain well-dispersed, aligned, and easily processable poly(methyl methacrylate)-based composites. Poly(methyl methacrylate)-based nanocomposite applications are also reviewed in an attempt to facilitate progress in this emerging area. These materials are potential candidates in electromagnetic interference shielding, gas sensors, separation membranes, tissue engineering, and drug delivery applications.
Poly(N-isopropylacrylamide)
Cite
Citations (26)
Abstract Infrared spectra of partially crystalline and amorphous samples of isotactic poly(methyl methacrylate) (i‐PMMA), poly[methyl (α,α,α‐ 2 H 3 )methacrylate] (i‐PMMA‐α‐CD 3 ), poly‐[( 2 H 3 )methyl methacrylate] (i‐PMMA‐OCD 3 ), and poly[( 2 H 3 )methyl (α,α,α,2,2‐ 2 H 5 )methacrylate] (i‐PMMA‐D 8 ) were measured. Infrared spectra of the pure crystalline forms of these substances were obtained by digital separation. It was found that in acetonitrile, CDCl 3 , and toluene solutions, i‐PMMA has the same conformational structure as in the amorphous state; conformational structures of crystalline i‐PMMA are not present in the solutions in measurable amounts.
Tacticity
Poly(N-isopropylacrylamide)
Cite
Citations (12)
Properties of poly methyl methacrylate are improved using different nanoparticles for denture applications and the best combination is selected using multi-criteria decision-making methods. For these purposes, poly methyl methacrylate is melt compounded with TiO2, SiO2, and Al2O3 nanoparticles and then injection molded. The results of mechanical tests revealed that by addition of TiO2 and SiO2, the impact strengths of poly methyl methacrylate were increased 229 and 62%, respectively. Also, the results indicated a significant improvement in Young's modulus and hardness. The implementation of multi-criteria decision-making methods illustrated that TiO2 nanoparticles are the best candidate for improving the properties of poly methyl methacrylate for dental applications.
Poly(N-isopropylacrylamide)
Cite
Citations (52)
Poly(methyl methacrylate) is a significant transparent thermoplastic polymer. It is well known for the mechanical, thermal, chemical, and weathering resistance. Poly(methyl methacrylate) forms an important category of shape memory materials. This feature article offers state-of-the-art review on stimuli responsive poly(methyl methacrylate) and poly(methyl methacrylate) nanocomposite. The fundamentals and characteristics of various types of shape memory poly(methyl methacrylate) nanocomposite were deliberated. Influence of nanocarbon (carbon nanotube, graphene) and inorganic nanoparticles (nanoclay, metal oxide) on the performance of stimuli responsive poly(methyl methacrylate) nanocomposites have been considered. Advancements in the application areas of shape memory poly(methyl methacrylate) nanocomposites toward technical fields were comprehended.
Poly(N-isopropylacrylamide)
Cite
Citations (8)
Poly(N-isopropylacrylamide)
Thermogravimetric analysis
Oxidizing agent
Degradation
Polydimethylsiloxane
Cite
Citations (8)
Poly(N-isopropylacrylamide)
Polymethyl methacrylate
Polymer nanocomposite
Cite
Citations (13)
Polystyrene
Poly(N-isopropylacrylamide)
Cite
Citations (74)
Abstract Samples of low‐molecular‐weight polystyrene (PS) in poly(methyl methacrylate) (PMMA) were prepared by first dissolving PS in methyl methacrylate monomer and then polymerizing the monomer. Forty‐three specimens of varying number‐average molecular weight (2100–49,000) and composition (5–40 wt %) of PS were prepared, and the surface morphology and phase relationships studied by scanning electron microscopy. Four distinct types of phase relationships were observed: (i) a single phase consisting of PS dissolved in PMMA; (ii) PS dispersed in PMMA; (iii) PMMA dispersed in PS; and (iv) regions of PS dispersed in PMMA coexisting with regions of PMMA dispersed in PS. Values of the size and population density of the dispersed particles are reported. Finally, the size and distribution of the dispersed particles and the various types of phase relationships are discussed in terms of the ternary polystyrene/poly(methyl methacrylate)/methyl methacrylate phase diagram.
Polystyrene
Poly(N-isopropylacrylamide)
Morphology
Cite
Citations (8)