Results 131 to 140 of about 5,343,652 (178)
Journal of Applied Polymer Science, 2007 International audienceThe imidization of poly(styrene-co-maleic anhydride) (SMA) was conducted, and the glass-transition temperatures (Tg's) of the resulting products were measured with differential scanning calorimetry. The contributions from functional
Zhen Yao, Guo-Hua Hu, Kun Cao
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Miscibility and esterification in the poly(styrene-co-maleic anhydride)/phenoxy blends
Journal of Applied Polymer Science, 1998The miscibility and esterification in poly(styrene-co-maleic anhydride) (PSTMA)/phenoxy blends were investigated by DSC and FTIR. The blends prepared by casting exhibited a single composition-dependent but broad T g during the first scanning. The broadness of the T g transition range is due to the presence of microphases in the blends, which acquired
Yumin Yuan, Eli Ruckenstein
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Direct polymer reaction of poly(styrene‐co‐maleic anhydride): Polymeric imidization
Journal of Applied Polymer Science, 1999Using direct polymer reaction of poly(styrene-co-maleic anhydride) (SMA), a synthesis of copolymer of styrene and N-aryl succinimide (SMI) has been investigated. SMI copolymers were synthesized from SMA copolymers by a concerted two-step reaction, which consisted of the condensation reaction (step 1) of SMA with aromatic amine to prepare a precursor ...
Sang-Soo Lee, Tae Oan Ahn
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Properties of miscible blends of polyglutarimide with poly(styrene-co-maleic anhydride)
Polymer, 1997In the present study, blends of styrene/maleic anhydride copolymer with polyglutarimide were studied using a variety of methods. The blends were found to be miscible over the entire composition range and showed positive deviations in glass transition temperature from the ideal (linear) behaviour. Fourier transform infra-red spectra of the blends showed
J. Prinos +3 more
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Modification of Poly(styrene-co-Maleic Anhydride) with Amino Acids in the Melt
Chemical Engineering & Technology, 2000In this work we made conversions of poly(styrene-co-maleic anhydride) (S/MA) with the aliphatic amino alcohols 2-amino ethanol, 3-amino propanol and aromatic amino alcohols like 3-amino phenol (3AP), 5-amino naphthol (5AN) and 3-amino benzyl alcohol (3 ABA) in the melt.
G. Schmidt-Naake, M. Klak
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Poly(styrene-alt-maleic anhydride) derivatives as potent anti-HIV microbicide candidates
Bioorganic and Medicinal Chemistry Letters, 2009 Topical microbicides offer women the opportunity to protect themselves from sexual HIV transmission under their own control. A series of poly[styrene-alt-(maleic anhydride)] derivatives were prepared by amidation or hydrolysis of the anhydride moiety ...
Jiahuai Han, Shoufa Han, Weijun Fang
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Miscibility and properties of polyglutarimide poly(styrene-co-maleic anhydride) blends
Polymer, 1999Abstract In the present study, blends of polyglutarimide (PGI) with styrene/maleic anhydride (SMA) copolymers showed complete miscibility with SMA containing 25, 33 and 50 mol.% maleic anhydride (MA), whereas blends with SMA containing 8 mol.% MA were found to be immiscible.
J Prinos, D Bikiaris, C Panayiotou
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Electrospun polystyrene–poly(styrene-co-maleic anhydride) nanofiber as a new aptasensor platform
Biosensors and Bioelectronics, 2012Here, we report the use of an aptamer-immobilized electrospun polystyrene-poly(styrene-co-maleic anhydride) (PS-PSMA) nanofiber as a new aptasensor platform for protein detection. Two thrombin-binding aptamers (TBA29 and TBA15) were used as a model platform to facilitate efficient detection of thrombin in a sandwich manner.
Su Jin, Lee +2 more
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Journal of Applied Polymer Science, 1997
Blends of PA 6 with SMA or with 12.5–100% fatty amine (C 18) modified SMA at compositions 95/5–60/40 were studied. Particle size of SMA dispersed in PA 6 matrix was around 0.1 μm due to in situ compatibilizer formation. The strength and stiffness of the blends were higher and toughness unchanged in comparison with PA 6 values.
I. Kelnar +3 more
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Blends of PA 6 with SMA or with 12.5–100% fatty amine (C 18) modified SMA at compositions 95/5–60/40 were studied. Particle size of SMA dispersed in PA 6 matrix was around 0.1 μm due to in situ compatibilizer formation. The strength and stiffness of the blends were higher and toughness unchanged in comparison with PA 6 values.
I. Kelnar +3 more
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Reactive compatibilization of poly(styrene‐Co‐maleic anhydride)/poly(phenylene oxide) blends
Macromolecular Symposia, 1996AbstractPrimary amine terminated polystyrene (PS‐NH2), with Mn=12,000 g/mol and Mw=23,000 g/mol, was applied as a reactive compatibilizer for poly(styrene‐co‐maleic anhydride)/poly(phenylene oxide) (SMA/PPO) blends, in which both an impact modifier for the continuous SMA phase, viz. ABS, and the dispersed PPO phase, viz. SEBS, was incorporated.
Cor Koning +3 more
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