Results 51 to 60 of about 30,925 (146)
Supramolecular polymer hydrogels induced by host-guest interactions with di-[cyclobis(paraquat-p-phenylene)] cross-linkers: from molecular complexation to viscoelastic properties [PDF]
, 2017 Supramolecular polymer networks have been designed on the basis of a -electron donor/acceptor complex: naphthalene (N)/cyclobis(paraquat-p-phenylene) (CBPQT4+=B). For this purpose, a copolymer of N,N-dimethylacrylamide P(DMA-N1), lightly decorated with 1
Belal, Khaled +7 more
core +3 more sources
Frontiers in Materials, 2020 Biodegradable polymers concern an important topic for innovation in materials, as they are supposed to contribute to the reduction in the amount of waste materials, which lead to microplastics with similar properties as conventional polymer materials ...
Emma Delamarche +6 more
doaj +1 more source
Technique d’imagerie par rayons X en contraste de phase pour du contrôle de matériaux composite
e-Journal of Nondestructive Testing, 2023 Le contraste de phase en imagerie par rayons X permet de voir des détails de structures dans les matériaux peu absorbants. Plusieurs techniques existent mais l’interférométrie à décalage multilatérale (IDML) permet une mesure simultanée des gradients de
Laureen Guitard +3 more
doaj +1 more source
Effects of grain size distribution on the initial strain shear modulus of calcareous sand [PDF]
, 2015 The soil’s small strain shear modulus, Gmax or G0, is applied in dynamic behavior analyses and is correlated to other soil properties (density and void ratio) for predicting soil dynamic behavior under seismic loadings such as earthquakes, machinery or ...
Haegeman, Wim +4 more
core +1 more source
Ionic Liquid-Nanostructured Poly(Methyl Methacrylate)
Nanomaterials, 2019 Here, ionic liquids (ILs) based on imidazolium and ammonium cations were used as modifying agents for poly(methyl methacrylate) (PMMA) by extrusion. The effects of the chemical nature of the cation and/or counter anion on the resulting properties of IL ...
Clarice Fedosse Zornio +3 more
doaj +1 more source
Bulletin of Chemical Reaction Engineering & Catalysis, 2020 In this paper we have explored a novel and green method to synthesis and polymerize ethylene glycol dimethacrylate (EGDM). This technique consists on using Maghnite (Algerian clay) as a green catalyst to replace toxic catalysts.
Sara Haoue +3 more
doaj +1 more source
Influence of water on localized and delocalized molecular mobility of cellulose [PDF]
, 2007 The influence of hydration on cellulose molecular mobility is investigated by two dielectric methods at different molecular scale. The mobility of side groups, assigned to c mode, for dried cellulose increases.
Boudet, Alain-Michel +4 more
core +2 more sources
Fragility of a thermoplastic polymer. Influence of main chain rigidity in polycarbonate [PDF]
, 2005 We present new data on a vitreous polycarbonate (PC) and its fragility index. Measurements have been performed by means of differential scanning calorimetry (DSC).
Bernès, Alain +4 more
core +2 more sources
Vectorisation intra-oculaire [Drug delivery to target the posterior segment of the eye]. [PDF]
, 2004 Retinal diseases are nowadays the most common causes of vision threatening in developed countries. Therapeutic advances in this field are hindered by the difficulty to deliver drugs to the posterior segment of the eye.
Behar-Cohen, F.
core +1 more source
Applied Rheology, 2013 The shear thickening behavior of concentrated suspensions can be exploited to dissipate energy during impact or shear loading. To preserve the consistency of the thickening behavior in practical applications, particle concentration, and dispersion should
Soutrenon Mathieu +2 more
doaj +1 more source