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Poly(ethylene oxide) x polyacrylamide. Which one is more efficient to promote drag reduction in aqueous solution and less degradable?
(John Wiley & Sons IncHobokenEUA, 2008)
Weathering degradation of polyester and polypropylene geotextiles
(Zhejiang Univ Press, 2014)
Mechanical Degradation of Polypropylene Solutions Under Large Pressure Drops
(John Wiley & Sons Inc, 2007-02)
The degradation of polypropylene (PP), dissolved in n-alkanes at high temperatures and pressures, during the solution discharge to ambient conditions was experimentally studied. Molecular weight distributions (MWD) of the ...
The influence of silane surface modification on microcrystalline cellulose characteristics
(2020-02-15)
Microcrystalline cellulose (MCC) can be a reinforcement in composites, especially after surface modification. In this paper, MCC was modified using 3-aminopropyltriethoxysilane (APTES) in the following ratios (MCC/APTES): ...
Effect of styrene addition on polystyrene molecular degradation by Lewis acids
(John Wiley & Sons Inc, 2009-12)
The polystyrene molecule can suffer chain scission by beta-cleavage mechanism in the presence of Lewis acids. This is an undesirable secondary reaction, particularly when the Friedel-Crafts alkylation is applied to immiscible ...
Modeling of pipeline corrosion degradation mechanism with a Lévy Process based on ILI (In-Line) inspections
In pipelines, one of the primary testing procedures used to identify the effects and evolution of corrosion over
time is through In-Line Inspections (ILI). ILI inspections provide detailed information regarding the inner ...
Using shifts in the electronic emission curve to evaluate polymer surface degradation
(Elsevier B.V., 2001-01-01)
The polymer surface degradation and/or modification evolution of Teflon FEP and Mylar C films caused by a low energy electron beam were analyzed using a new method that consists in measuring the second crossover energy ...
Using shifts in the electronic emission curve to evaluate polymer surface degradation
(Elsevier B.V., 2001-01-01)
The polymer surface degradation and/or modification evolution of Teflon FEP and Mylar C films caused by a low energy electron beam were analyzed using a new method that consists in measuring the second crossover energy ...
Polyurethane networks from pentaerythritol-modified castor oil and lysine polyisocyanates: synthesis, mechanical, and thermal properties and in vitro degradationPoliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro
(Química Nova, 2014-08-11)
Biodegradable polyurethanes (PUR) were prepared from polyols derived from castor oil by transesterification of pentaerythritol-modified castor oil and lysine polyisocyanates (LDI and LTI). The polyurethanes obtained were ...