نتایج جستجو برای: urethane acrylate
تعداد نتایج: 8856 فیلتر نتایج به سال:
toid, erythematous-vesicular, or urticarial lesions appear on the periphery of and at a distance from the area of the original contact. Histopathology findings are nonspecific. Spongiosis and exocytosis are common findings, although vacuolar degeneration of the basement membrane or epidermal necrolysis is more unusual. Acrylate-induced allergic contact dermatitis usually manifests as eczematous...
In this work we describe a newly designed dual acrylate coating that can be used at higher temperatures than conventional acrylates, while retaining most of their advantages. As part of the discussion, we consider herein the concept of thermal stability and provide a simple way of evaluating it for different optical fiber coatings. We have used our new method to identify a dual acrylate coating...
toid, erythematous-vesicular, or urticarial lesions appear on the periphery of and at a distance from the area of the original contact. Histopathology findings are nonspecific. Spongiosis and exocytosis are common findings, although vacuolar degeneration of the basement membrane or epidermal necrolysis is more unusual. Acrylate-induced allergic contact dermatitis usually manifests as eczematous...
The oxidation of glucose by yeast is inhibited by urethane, and at sufficiently high concentrations of the inhibitor oxygen uptake may be suppresed completely. However, no direct proportionality exists between the degree of inhibition and urethane concentration. This discontinuity in the relationship between degree of inhibition and concentration of urethane has been adduced by Fisher and Stern...
In this work, we synthesized end group functionalization of the cis-Norbornene-5-6-endo-dicarboxylic anhydride species via the ring-opening metathesis polymerization (ROMP) of oxanorbornene derivatives generated a chiseled poly(cis-Norbornene-5-6-endo-Dicarboxylic anhydride) acrylate macromonomer. Further, acrylate oxanorbornene based macromonomer further polymerized via reversible addition fra...
Molecularly imprinted polymeric films (MIPFs) highly selective to 1R,2S(-)ephedrine (L-ephedrine, EPD) were produced by phase inversion post-polymerization imprinting on poly(acrylonitrile-co-methyl methacrylate-co-acrylic acid) (PAMA) terpolymers. The inclusion of methyl methacrylate (MMA) to the polymer formulation resulted in enhanced EPD selectivity which appears to be dictated by polymer c...
Temperature-sensitive hyaluronic acid (HA) hydrogels were synthesized by photopolymerization of vinyl group modified HA in combination with acrylate group end-capped poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) tri-block copolymer (Pluronic F127). The synthesized HA/Pluronic composite hydrogels gradually collapsed with increasing temperature over the range of 5-40 degrees ...
toid, erythematous-vesicular, or urticarial lesions appear on the periphery of and at a distance from the area of the original contact. Histopathology findings are nonspecific. Spongiosis and exocytosis are common findings, although vacuolar degeneration of the basement membrane or epidermal necrolysis is more unusual. Acrylate-induced allergic contact dermatitis usually manifests as eczematous...
Olefin cross-metathesis has been demonstrated to be a modular pathway for synthesis of a series of functionalized cellulose esters. As a proof of concept, cellulose acetate was acylated with two terminally olefinic acid chlorides, pent-4-enoyl chloride and undec-10-enoyl chloride, providing olefin-terminated cellulose esters with different side-chain lengths. These ω-unsaturated cellulose ester...
The thermal stability of a self-assembled micelle was remarkably enhanced by a topology effect. Linear poly(butyl acrylate)-block-poly(ethylene oxide)-block-poly(butyl acrylate) (1) and the cyclized product, poly(butyl acrylate)-block-poly(ethylene oxide) (2), were self-assembled to form flower-like micelles. By means of viscometry, the critical micelle concentrations were determined to be 0.13...
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