Results 251 to 260 of about 389,780 (288)
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A Polystyrene−Oligothiophene−Polystyrene Triblock Copolymer
Journal of the American Chemical Society, 1998A well-defined triblock copolymer is synthesized by using a strategy in which the a-coupling of 11 thiophene rings of the middle block and the monodispersity (d.p. = 30 and 1.1) of the two polystyrene outer blocks is ensured. Monofunctional polystyrene is modified with an a-terthiophene unit and two of these units are coupled in a double Stetter ...
Hempenius, M. +7 more
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Journal of Colloid and Interface Science, 2014
Copolymers SBS-DFHMA and mesoporous silica SBA-15 were respectively synthesized and SBS-DFHMA were mixed with SBA-15 to prepared hybrid antifouling coatings by a spin-coater. By measuring the surface water contact angle and the attachment of Pseudomonas fluorescens, Chlorella and Diatoms, the antifouling properties of coatings were evaluated.
Jiang, Li +4 more
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Copolymers SBS-DFHMA and mesoporous silica SBA-15 were respectively synthesized and SBS-DFHMA were mixed with SBA-15 to prepared hybrid antifouling coatings by a spin-coater. By measuring the surface water contact angle and the attachment of Pseudomonas fluorescens, Chlorella and Diatoms, the antifouling properties of coatings were evaluated.
Jiang, Li +4 more
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2009
Abstract Major Applications One of the most widely used plastics, having applications in industries of packaging, appliances, construction, automobiles, electronics, furniture, toys, house wares, and luggage (1–3). Properties of Special Interest Crystal clear thermoplastic, hard, rigid, free of odor and taste, ease of heat fabrication ...
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Abstract Major Applications One of the most widely used plastics, having applications in industries of packaging, appliances, construction, automobiles, electronics, furniture, toys, house wares, and luggage (1–3). Properties of Special Interest Crystal clear thermoplastic, hard, rigid, free of odor and taste, ease of heat fabrication ...
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Faraday Discussions of the Chemical Society, 1974
Abstract Model polystyrene networks have been prepared, at different concentrations in an inert solvent, in such a way that the number of crosslinks is accurately known, and the topology of the network can be varied in a controlled way. The contribution of various network defects to the modulus of the network has been examined.
G. Allen, P. A. Holmes, D. J. Walsh
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Abstract Model polystyrene networks have been prepared, at different concentrations in an inert solvent, in such a way that the number of crosslinks is accurately known, and the topology of the network can be varied in a controlled way. The contribution of various network defects to the modulus of the network has been examined.
G. Allen, P. A. Holmes, D. J. Walsh
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Immiscibility in polystyrene/sulfonated polystyrene blends
Polymer, 1995Abstract Miscibility in the binary system of deuterated polystyrene and lightly sulfonated polystyrene has been investigated. Small-angle neutron scattering was used to evaluate the physical state of deuterated polystyrene/polystyrene—1.67% sulfonic acid blends over a wide composition range.
N.C.Beck Tan +3 more
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Lipase Polystyrene Giant Amphiphiles
Journal of the American Chemical Society, 2002A new type of giant amphiphilic molecule has been synthesized by covalently connecting a lipase enzyme headgroup to a maleimide-functionalized polystyrene tail (40 repeat units). The resulting biohybrid forms catalytic micellar rods in water.
Velonia, Kelly +2 more
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Luminescent Diazaborolyl-Functionalized Polystyrene
ACS Macro Letters, 2012We present two different procedures for the synthesis of poly[4-(1',3'-diethyl-1',3',2'-benzodiazaborolyl)styrene] (3a) and poly[4-(1',3'-diphenyl-1',3',2'-benzodiazaborolyl)styrene] (3b). The new polymers were fully characterized by GPC, multinuclear NMR, and elemental analysis. The thermal properties and stability were studied by DSC and TGA, and the
Kuhtz, Henry +7 more
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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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