Polymer porosity
WebDec 14, 2024 · Porous organic polymers for drug delivery: hierarchical pore structures, variable morphologies, and biological properties. Biomaterials Science 2024 , 10 (19) , … WebOct 7, 2008 · The porosity of porous copolymer 1-vinyl-2-pyrrolidone-divinylbenzene has been studied by nitrogen adsorption, temperature programmed desorption, and …
Polymer porosity
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WebAug 1, 2024 · In this paper, thermoviscoelastic behavior of a hollow cylinder made of short fiber-reinforced polymer considering porosity is investigated by an analytical method. Material properties, except the Poisson’s ratio and coefficient of thermal expansion, are assumed to be changed with the volume of constituents and porosity. Utilizing the finite … WebJan 24, 2024 · Hyper-cross-linked polymers (HCPs) have aroused great interest because of their potential applications in adsorbing greenhouse gases and volatile organic …
WebApr 1, 2024 · Hydrogels are polymeric networks highly swollen with water. Because of their versatility and properties mimicking biological tissues, they are very interesting for biomedical applications. In this aim, the control of porosity is of crucial importance since it governs the transport properties and influences the fate of cells cultured onto or into the … WebDec 1, 2013 · The relationship between water absorption and the total porosity of the polymer-modified and unmodified cement mortars for all types of curing conditions were also considered. Accordingly, the relationship between water absorption and total porosity of the PMM mixes existed in the exponential form with a correlation factor of 0.7.
WebOct 15, 2024 · The size and shape of polymer materials is becoming an increasingly important property in accessing new functions and ... demonstrated the greatest infiltration when the bioactive BDNF mimetic peptide sequence was combined with the increased porosity resulting from the superstructure self-assembly. Reproduced under the terms … WebJan 18, 2024 · Studies related to extending the mechanical modeling to account for porosity effects on the elastic modulus and yield stress of polymers and polymer-nanocomposites are discussed. Finally, a brief review of the implementation of this modeling into 3D computational methods to predict the large elastic-viscoplastic deformation response of …
WebPorosity may be classified according to the mode of origin as “original” and “induced”. The original porosity is that developed in the process of deposition that forms the rock, while induced or secondary porosity added at a later stage by some geologic and chemical process.The inter-granular porosity of sandstones and the inter-crystalline and oolitic …
WebApr 11, 2024 · In the present study, polysaccharide-based cryogels demonstrate their potential to mimic a synthetic extracellular matrix. Alginate-based cryogel composites with different gum arabic ratios were synthesized by an external ionic cross-linking protocol, and the interaction between the anionic polysaccharides was investigated. The structural … notepad disable automatic parenthessiWebDec 1, 2009 · The porosity of porous copolymer 1-vinyl-2-pyrrolidone-divinylbenzene has been studied by nitrogen adsorption, temperature programmed desorption, and … notepad deleted recoverWebNov 9, 2024 · Microporous polymer membranes have been widely studied because of their excellent separation performance. Among them, polymers of intrinsic micro-porosity (PIMs) have been regarded as a potential next-generation membrane material for their ultra-permeable characteristics and their solution-processing ability. Therefore, many reviews … how to set search bar in flutterWebAug 13, 2024 · Printing Porous Structures. Controlling porosity and pore size in 3D printed porous structures is challenging. In a recent communication, researchers demonstrate how the porosity in a polymer monolith can be controlled by changing only the exposure dose during 3D printing. Porous materials are widely used in technologies where large surface ... how to set sdk path in visual studio codeWebJun 20, 2024 · We report the preparation of hierarchically porous polymers containing fully interconnected and controlled micro-, meso-, and macropores, where a hyper-cross-linked … how to set search bar to googleWebThe porosity and morphology of these hydrophobic monoliths (Figure 3.2) are influenced by the amount and type of alcohol porogens in the polymer mixture [9]. Polymer mixture … notepad delete all lines starting withWebApr 15, 2024 · For example, internal void space was created within so-called polymers of intrinsic microporosity ... and the success of design techniques to control porosity in amorphous polymers 9. how to set search icon in html