نتایج جستجو برای: styrene based ionomers

تعداد نتایج: 2940428  

Journal: :Industrial health 2009
Gerhard Triebig Philipp Werner Holger Zimmer

PURPOSE OF THE STUDY The purpose of this study is to examine the effectiveness of several types of personal respiratory protection equipment at styrene exposed laminators under real work place conditions. SUBJECTS AND METHOD 99 male styrene exposed workers were examined. During their lamination activities the average styrene concentrations in air ranged between 30 to 60 ppm (maximum: 205 ppm)...

Background: Volatile organic compounds (VOCs) are one of the most important and prevalent air pollutants. The vapor produced as a result of the vaporization ‎of these compounds, even at very low concentrations, is harmful to the environment and human health. Thus, the aim of this study was to evaluate the removal of styrene vapor from the air flow using Zeolite ‎(ZSM-5) in a continuous ...

Journal: :British Dental Journal 2018

Journal: :American journal of epidemiology 1996
E Welp M Kogevinas A Andersen T Bellander M Biocca D Coggon J Esteve V Gennaro H Kolstad I Lundberg E Lynge T Partanen A Spence P Boffetta G Ferro R Saracci

Chronic low-dose exposure to solvents has been associated in epidemiologic studies with chronic neurotoxicity, but the evidence is not consistent. Styrene causes acute disturbances in the central and peripheral nervous systems. To determine if exposure to styrene may contribute to chronic diseases of the central nervous system, the authors examined mortality from nervous system diseases, mental...

Journal: :Journal of Polymer Science: Macromolecular Reviews 1981

Journal: :The Journal of organic chemistry 2015
Tsugio Kitamura Kensuke Muta Juzo Oyamada

Fluorination of styrene derivatives with a reagent system composed of μ-oxo-bis[trifluoroacetato(phenyl)iodine] and a pyridine·HF complex gave the corresponding (2,2-difluoroethyl)arenes in good yields. Similarly, the reagent of PhI(OCOCF3)2 and the pyridine·HF complex acted as a fluorinating agent for styrene derivatives. The fluorination of styrene derivatives with the pyridine·HF complex und...

2010
Tianyu Wu Rebecca H. Brown Andrew J. Duncan Frederick L. Beyer Timothy E. Long Timothy Long

The influence of tailored electrostatic interactions on the physical properties and morphology of high performance polymeric membranes remains as a critical concern for emerging technologies. We demonstrated earlier the synthesis of acrylic-based sulfobetaine-containing copolymers in non-fluorinated solvents, and the electrospinning of such copolymers below the expected entanglement concentrati...

2017
George Cruzan James S. Bus Marcy I. Banton Satinder S. Sarang Robbie Waites Debra B. Layko James Raymond Darol Dodd Melvin E. Andersen

Styrene is a mouse-specific lung carcinogen, and short-term mode of action studies have demonstrated that cytotoxicity and/or cell proliferation, and genomic changes are dependent on CYP2F2 metabolism. The current study examined histopathology, cell proliferation, and genomic changes in CD-1, C57BL/6 (WT), CYP2F2(-/-) (KO), and CYP2F2(-/-) (CYP2F1, 2B6, 2A13-transgene) (TG; humanized) mice foll...

Journal: :Journal of cell science 1991
H M Kowalczynska J Kaminski

The static adhesion of living L1210 cells (in serum-containing medium) to the surface of (styrene/methylmethacrylate) copolymers differing in styrene content (from 5% to 50% of styrene units) was investigated. The examination of wettability of the copolymer surfaces showed that the contact angle of water on the hydrophobic surfaces is an increasing linear function of styrene content in the copo...

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