About morphology in ethylene–propylene(-diene) copolymers-based latexes

Tillier, Delphine L.; Meuldijk, J.; Höhne, G.W.H.; Frederik, Peter M.; Regev, Oren; Koning, Cor E.

doi:10.1016/j.polymer.2005.05.095

Cited by 25 publications

(17 citation statements)

References 41 publications

(44 reference statements)

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“…PMMA macroradicals may also combine with EPDM radicals to terminate, leading to graft copolymers. Finally, two rubber radicals may recombine leading to partial crosslinking 42, 43. Figure 10 shows the schematic representation of the interaction that occurs between the elastomeric phase and glassy phase.…”

Section: Resultsmentioning

confidence: 99%

Natural Compounds against Alzheimer’s Disease: Molecular Recognition of Aβ1–42 Peptide by Salvia sclareoides Extract and its Major Component, Rosmarinic Acid, as Investigated by NMR

Airoldi

Sironi

Dias

et al. 2013

Chemistry An Asian Journal

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Amyloid peptides, Aβ1-40 and Aβ1-42, represent major molecular targets to develop potential drugs and diagnostic tools for Alzheimer's Disease (AD). In fact, oligomeric and fibrillar aggregates generated by these peptides are amongst the principal components of amyloid plaques found post mortem in patients suffering from AD. Rosmarinic acid has been demonstrated to be effective in preventing the aggregation of amyloid peptides in vitro and to delay the progression of the disease in animal models. Nevertheless, no information is available about its molecular mechanism of action. Herein, we report the NMR characterization of the interaction of Salvia sclareoides extract and that of its major component, rosmarinic acid, with Aβ1-42 peptide, whose oligomers have been described as the most toxic Aβ species in vivo. Our data shed light on the structural determinants of rosmarinic acid-Aβ1-42 oligomers interaction, thus allowing the elucidation of its mechanism of action. They also provide important information for the rational design of new compounds with higher affinity for Aβ peptides to generate new anti-amyloidogenic molecules and/or molecular tools for the specific targeting of amyloid aggregates in vivo. In addition, we identified methyl caffeate, another natural compound present in different plants and human diet, as a good ligand of Aβ1-42 oligomers, which also shows anti-amyloidogenic activity. Finally, we demonstrated the possibility to exploit STD-NMR and trNOESY experiments to screen extracts from natural sources for the presence of Aβ peptide ligands.

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Section: Resultsmentioning

confidence: 99%

Natural Compounds against Alzheimer’s Disease: Molecular Recognition of Aβ1–42 Peptide by Salvia sclareoides Extract and its Major Component, Rosmarinic Acid, as Investigated by NMR

Airoldi

Sironi

Dias

et al. 2013

Chemistry An Asian Journal

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“…In the absence of micro-voids or other light scattering entities, PMMA samples did not display any stress whitening under any thermoforming conditions. Previous studies on PMMA indicated that source of stress whitening in neat PMMA was micro-void formation due to crazing [52,53] and that in rubber modified PMMA was due to cavitation or debonding of rubber particles [27,28,31,54]. In our case, PMMA molecular structure was modified with cross-linking agent in order to improve stiffness and strength of the material.…”

Section: Surface Deformation In Neat Pmma Samplesmentioning

confidence: 76%

“…In this study, optical images are further processed and single numerical values representing different levels of stress whitening are derived from image histograms. Stress whitening in PMMA based composites is primarily due to the scattering of visible light from mechanically induced surface defects, such as voids, cracks, cavities [21,[27][28][29][30][31]. Degree of stress whitening depends on size and density of these defects and stress whitening is only observed if size of defects is in order of wavelength of visible light [20].…”

Section: Introductionmentioning

confidence: 99%

Micro-deformation mechanisms in thermoformed alumina trihydrate reinforced poly(methyl methacrylate)

Gunel

Basaran

2009

Materials Science and Engineering: A

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“…A large number of processes are carried out under conditions in which nonequilibrium morphologies are obtained 11, 22–27. These are morphologies governed by kinetics.…”

Section: Introductionmentioning

confidence: 99%

Modeling multiphase latex particle equilibrium morphology

Reyes

Asúa

2010

J. Polym. Sci. A Polym. Chem.

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Multiphase waterborne polymer particles provide advantages in more demanding applications and their performance depends on particle morphology. Currently, no general approach to predict the morphology of multiphase latex particles is available. In this work, a model based on Monte Carlo methods was developed for the prediction of equilibrium morphologies of multiphase waterborne systems, such as polymer-polymer and polymer-polymer-inorganic hybrids.

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About morphology in ethylene–propylene(-diene) copolymers-based latexes

Cited by 25 publications

References 41 publications

Natural Compounds against Alzheimer’s Disease: Molecular Recognition of Aβ1–42 Peptide by Salvia sclareoides Extract and its Major Component, Rosmarinic Acid, as Investigated by NMR

Natural Compounds against Alzheimer’s Disease: Molecular Recognition of Aβ1–42 Peptide by Salvia sclareoides Extract and its Major Component, Rosmarinic Acid, as Investigated by NMR

Micro-deformation mechanisms in thermoformed alumina trihydrate reinforced poly(methyl methacrylate)

Modeling multiphase latex particle equilibrium morphology

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