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Polystyrene modifications. II. Ring‐substituted polystyrenes
Journal of Applied Polymer Science, 1963AbstractRing‐substituted styrenes were prepared and polymerized. They usually had higher glass transition temperatures than polystyrene. In some disubstituted systems the Tg was an additive function of the individual groups. Crystallinities of methyl‐substituted polymers varied, depending upon the ring positions involved.
K. R. Dunham +3 more
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Polymer Degradation and Stability, 1981
Abstract A first step in the thermal degradation of polystyrene prepared by radical polymerisation has been isolated by heating the polymer in the temperature range 199–280°C. In this step a chain scission process occurs without formation of volatile products, involving, on average, about one bond between structural units in every 10 000.
CHIANTORE, Oscar +3 more
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Abstract A first step in the thermal degradation of polystyrene prepared by radical polymerisation has been isolated by heating the polymer in the temperature range 199–280°C. In this step a chain scission process occurs without formation of volatile products, involving, on average, about one bond between structural units in every 10 000.
CHIANTORE, Oscar +3 more
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Dielectric properties of polystyrene and polystyrene-chloranil
Thin Solid Films, 1980Abstract Dielectric permittivities and losses were measured above room temperature in the frequency range 102–105 Hz for undoped and chloranil- (Chl-) doped polystyrene (PS) films (thickness about 15 μm) with progressively increasing Chl concentrations.
Y.K. Kulshrestha, A.P. Srivastava
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Diffusion of linear polystyrene into crosslinked polystyrene
Polymer, 1997Abstract The diffusion of linear polystyrene (PS) into its crosslinked counterpart was studied using both neutron reflectivity (NR) and forward recoil scattering (FRES). The penetrant molecular weights were monodisperse and ranged from 10 000 to 690 000 g mol −1 . The molecular weight between crosslinks was kept at 22 000 g mol −1 .
Wen-li Wu +5 more
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Biocidal polystyrene beads. IV. Functionalized methylated polystyrene
Journal of Applied Polymer Science, 2004AbstractCrosslinked chloromethylated polystyrene beads were reacted with hydantoin and imidazolidinone derivatives to produce functionalized beads which could be rendered biocidal upon reaction with free chlorine or bromine. The biocidal efficacies of the N‐chlorinated, and in one case, the N‐brominated polymeric beads against Staphylococcus aureus and
Y. Chen +6 more
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Photodegradation of polystyrene and polystyrene containing benzophenone
Polymer Photochemistry, 1983Abstract The photodegradation of polystyrene has been studied by electron spin resonance, infra-red absorption, viscosity and gel fraction measurements. Irradiations with light from a medium pressure mercury lamp to polystyrene film at 45°C in vacuum, gave rise to the polystyryl radical.
Ayako Torikai +2 more
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Cellular internalization and release of polystyrene microplastics and nanoplastics.
Science of the Total Environment, 2021Ling Liu +5 more
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Vitronectin adsorption on polystyrene and oxidized polystyrene
Journal of Colloid and Interface Science, 1989Abstract The secondary structure of human plasma vitronectin (VN) contains considerable β and random structure as ascertained by infrared spectroscopy and circular dichroism. VN adsorption kinetics on polystyrene and oxidized polystyrene were monitored by Fourier transform infrared spectroscopy.
W.G Pitt +3 more
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Polystyrene microplastics induced male reproductive toxicity in mice.
Journal of Hazardous Materials, 2020Haibo Jin +8 more
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