“Polyurethane (PU)/acrylate hybrids with different acrylic


“Polyurethane (PU)/acrylate hybrids with different acrylic contents (10, 30, 50, 70, and 90 wt %) were prepared by the polymerization of acrylic monomers in the presence of preformed PU chains with

polymerizable terminal vinyl groups. Films obtained by the casting of polymer dispersions before and after thermal annealing were characterized by dynamic light scattering, Fourier transform infrared spectroscopy, transmission electron microscopy (TEM), TEM electron energy-loss spectroscopy, differential scanning calorimetry, and gel fraction determination. Small-angle X-ray scattering (SAXS), wide-angle Xray scattering, mechanical properties testing, atomic force microscopy, water contact angle testing, Buchholz hardness testing, and roughness testing of the films were also performed. The effects of the acrylic AZD6094 solubility dmso content and thermal treatment on the structure and properties were determined. TEM showed that a core shell morphology was formed during polymerization. When the acrylic content increased, smaller particles without core shell morphologies were observed. TEM energy-loss spectroscopy studies confirmed this observation. Systems with up to 50 wt % acrylic component click here were homogeneous, as determined by SAXS, before and after thermal annealing. An attempt to incorporate a higher amount of acrylic component led to phase-separated materials with a different morphology and, therefore, different properties. The relationship

between the acrylic content and properties did not follow linear behavior. (c) 2010 Wiley

Periodicals, Inc. J Appl Polym Sci 116: 2694-2705, 2010″
“The current study sought to characterize and compare personality traits of patients with temporal lobe epilepsy (TLE) and frontal lobe epilepsy (FLE). Ninety-seven adults with medically intractable epilepsy (TLE n = 58, FLE n = 39) completed the Personality Assessment Inventory CHIR98014 in vivo (PAI) as part of routine preoperative investigations. Not surprisingly, both epilepsy groups endorsed significantly more symptoms across PAI clinical scales than the normative sample, most notably on scales assessing Depression and Somatic Complaints. Direct comparison of personality profiles of people with FILE and TLE revealed that FLE was associated with relative elevations on scales assessing emotional lability and relationship difficulties (i.e., Mania, Borderline Features, Antisocial, Stress, and Nonsupport). Although effect sizes were moderate to large, the clinical significance of these differences Was questionable (<1 SD). However, results of a logistic regression suggested that the Borderline Features and Anxiety scales have incremental validity in predicting seizure site (FLE vs TLE) above education and duration of recurrent seizures. These results suggest that patients with FLE may exhibit more behavioral traits associated with frontal dysfunction than patients with TLE. (C) 2009 Elsevier Inc. All rights reserved.

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