Modification of polystyrene

Chemical Modification of Polystyrenes in the Presence of Cationic Catalysis and Their Industrial Applications... 

Catalysts employed in this study are zirconium(lV)-hydrides on oxide support (silica, silica-alumina and alumina). Their synthesis is described above. We present here some transformations or modifications of polystyrene, linear alkanes and polyethylene with Zr-H catalyst... 

X. Gao, H. J. Mathieu, and M. Schawaller, Surface modification of polystyrene biochip for biotin labelled protein/StreptAvidin and NeutrAvidin coupling used in fluorescence assay,... 

Modification of Polystyrene with Polybutadiene and the Method of Studying Morphology of the Obtained Multiphase High Impact Systems... 

Studies In this area are now being directed toward synthesis of polystyrene containing pendant malelmlde groups. Other workers have reported the photochemical modification of polystyrene with maleic anhydride. —- and malelmlde.—... 

Massey, S., P. Cloutier, M. Bazin, L. Sanche and D. Roy. 2008a. Chemical modification of polystyrene by low-energy (<100 eV) electron irradiation studied by mass spectrometry. J Appl Polym Sci 108 3163-3168. 

Figure 3.22. Relationship between fatigue crack propagation rate per cycle dajdn and the range of applied stress intensity factor AK for various modifications of polystyrene (Hertzberg et a/., 1973). Note the toughening effect of incorporating a rubbery phase, as in HiPS or ABS, compared to the weakening effect of crosslinking.

M. J. Wang, Y. I. Chang, F. Poncin-EpaiUard, Effects of the addition of hydrogen in the nitrogen cold plasma The surface modification of polystyrene, Langmuir, 19, 8325-8330 (2003). 

M.F., Svagera, R., and Kern, W. (2005) UV assisted surface modification of polystyrene in the presence of trialkylsi-lanes. Macromol. Chem. Phys., 206 (22), 2248-2256. 

Kaczmarek, H. Swicatek, M. Kaminska, A. Modification of polystyrene and poly(vinyl chloride) for the purpose of obtaining packaging materials degradable in the natural environment. Polym. Degrad. Stabil. 2004, 83, 35-45. 

Nevertheless, such reactive functions from pre-stages on a modified support may interfere later on with steps of the Merrifield peptide synthesis causing unforeseen troubles. From this shortly depicted complex of problems of subsequent modification of polystyrene supports, the following consequences may be deduced ... 

Pfleging W, Bruns M, Welle A, Wilson S. Laser-assisted modification of polystyrene siufaces for cell culture applications. Appl Surf Sd 2007 253 9177-84. 

Mechanical blending of PS with PB is not very effective, and in its classic form is a matter of the past. Blending technology is still used for modification of polystyrenes with special rubber components such as thermoplastic elastomers, eg, SBS or SEBS. HIPS is also sometimes blended with styrene homopolymer to yield material with reduced cost but intermediate properties still acceptable for some applications. 

Hautekeer, J.R, Varshney, S.K., Fayt, R., Jacobs, G., JerOme, R. and Teyssi, Ph. (1990) Anionic polymerization of acrylic monomers. Synthesis, characterization and modification of polystyrene-poly(tert-butylacrylate) di- and triblock copolymers. Macromolecules, 23,... 

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