Results 151 to 160 of about 6,404 (196)

Modification of Poly(styrene-co-Maleic Anhydride) with Amino Acids in the Melt

Chemical Engineering & Technology, 2000
In 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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Shear-induced mixing and demixing in poly(styrene- co-maleic anhydride)/poly(methyl methacrylate) blends

Journal of Rheology, 1998
The response of macromolecular binary mixtures to shear flow is rather complex. Experimental evidence suggests that both shear-induced mixing and shear-induced demixing, observed as suppression or enhancement of concentration fluctuations, respectively, can occur (Hobbie et al, 1994; Larson, 1992; Takebe et al, 1989), depending on the amount of ...
D. Chopra, D. Vlassopoulos, S. G. Hatzikiriakos   +2 more
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Reactive blending of nylon 6 and modified poly(styrene-co-maleic anhydride); influence of poly(styrene-co-maleic anhydride) modification by fatty amine onto blend properties

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, M. Stephan, L. Jakisch, I. Forteln�   +3 more
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Synthesis and Characterization of Mesoporous Hypercrosslinked Poly (Styrene Co- Maleic Anhydride) Microspheres

International Journal of Polymeric Materials, 2012
Mesoporous hypercrosslinked styrene and maleic anhydride microspheres were prepared by suspension polymerization using a free radical initiator. Degree of crosslinking was increased by increasing the divinylbenzene content. Scanning electron micrographs revealed the introduction of definite compactness in the microspheres with increase in ...
Renuka Gonte, K. Balasubramanian, Pramil C. Deb, Pravin Singh   +3 more
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Liquid crystallization of poly(styrene‐co‐maleic anhydride) induced by intermolecular hydrogen bonds

Journal of Applied Polymer Science, 1999
The liquid crystallization of general polymer (GP) with maleic anhydride in the main chain has been realized through molecular recognition and self-assembly based on intermolecular hydrogen bonds. Poly[styrene-co-(N-4-carboxylphenyl)maleimide] (SMIBA) was synthesized by imidization and dehydration of Poly(styrene-co-maleic anhydride) (SMA) with p ...
Hua Yan, Xia Zhu
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Dielectric relaxation of monoesters based poly(styrene-co-maleic anhydride) copolymer

Journal of Polymer Research, 2007
A series of alkyl-grafted copolymers based on styrene-maleic anhydride (SMA) copolymers were synthesized by esterification of SMA with several long chain normal aliphatic alcohols. The prepared copolymers were characterized by FT-IR and 1H NMR and DSC.
Gamal R. Saad, Rania E. Morsi, Sayed Z. Mohammady, Maher Z. Elsabee   +3 more
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Synthesis and characterization of CdS nanocrystals in poly(styrene-co-maleic anhydride) copolymer

Colloid and Polymer Science, 2003
CdS nanocrystals were synthesized in N, N-dimethylformamide solution of poly(styrene-co-maleic anhydride) random copolymer through the reaction of thiourea with cadmium acetate. The resulting random copolymer/CdS nanocrystal composites obtained under different reaction times or cadmium acetate concentrations were very stable and gave a bright ...
Yanming Chen, Xiangling Ji, Shichun Jiang, Qi Sun, Bingzheng Jiang   +4 more
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Synthesis of a new photocrosslinkable prepolymer, based on poly(styrene-co-maleic anhydride)

Reactive and Functional Polymers, 1996
Abstract Photocrosslinkable prepolymers were synthesized by using poly(styrene- co -maleic anhydride) as the polymeric backbone and 4-[2-(4-[aminomethyl]phenyl)ethenyl]pyridine as the crosslinking agent. The photochemical [2+2] cycloaddition of the ethylene double-bond is utilized as the crosslinking principle.
Steffen Wehrens, Georg Tomaschewski
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Dynamic mechanical properties of semi-interpenetrating networks based on poly(styrene-co-maleic anhydride): 3. Poly(2,6-dimethyl-1,4-phenylene ether)-cross-poly(styrene-co-maleic anhydride)

Colloid and Polymer Science, 1994
Semi-IPN's based on linear poly(2,6-dimethyl-1,4-phenylene ether) (PPE) and diamine crosslinked poly(styrene-co-maleic anhydride) (PScoMA) copolymers containing small amounts of maleic anhydride (PSA=4.7wt.-% MA, PSB=5.8 wt-% MA) are studied with respect to the influence of cross-linking on the phase behavior.
J. Rösch, Liane L. de Lucca Freitas, R. Stadler   +2 more
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Study on polymer blends of poly(styrene-co-acrylonitrile) and poly(styrene-co-maleic anhydride)

Polymer, 1988
Abstract Polymer blends of poly(styrene- co -acrylonitrile) and poly(styrene- co -maleic anhydride) have been investigated by differential scanning calorimetry and light scattering measurements. Depending on the copolymer compositions it is possible to obtain miscible and immiscible blends and blends with lower critical solution temperature behaviour.
J. Kressler, H.W. Kammer, G. Schmidt-Naake, K. Herzog   +3 more
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