Polymer degradation polystyrene

Chigwada, G., Jash, P., Jiang, D. D., and Wilkie, C. A. Synergy between nanocomposite formation and low levels of bromine in fire retardancy in polystyrenes, Polym. Degrad. Stab. (2005), 88, 382-393. 

X. Zheng and C.A. Wilkie, Synergy between nanocomposites formation and low levels of bromine and fire retardancy in polystyrene, Polym. Degrad. Stabil., 2003, 81 539-550. 

Guaita, M., Chiantore, O., and Costa, L. Changes in degree of polymerisation in the thermal degradation of polystyrene. Polymer Degradation and Stability 1985 12 315. 

G. Audisio, F. Bertini, P. L. Beltrame, and P. Camiti, Catalytic degradation of polymers Part III - degradation of polystyrene, Polym. Degrad. Stab. 29, 191-200 (1990). 

G. Geuskens, P. Bastin, Q. Lu Vinh, and M. Rens, Photooxidation of polymers. Part IV. Influence of the processing conditions on the photooxidative stability of polystyrene, Polym. Degrad. Stab. 1981, 3, 295-306. 

G. Chigwada, P. Jash, D. D. Jiang, and C. A. Wilkie, Synergy between nanoeompos-ite formation and low levels of bromine on fire retardancy in polystyrenes. Polymer Degradation and Stability, 88 (2005), 382-93. 

Biaxially oriented polystyrene film, 23 408 Biaxial viscosity, 21 718 Bibenzyl solution, VDC polymer degradation in, 25 717 Bibliographic patent information, 18 212 Bibutyltin dichloride, 24 820 Bicarbonates, 12 66... 

S. Chang, T. Xie, and G. Yang, Effects of polystyrene-encapsulated magnesium hydroxide on rheological and flame-retarding properties of HIPS composites, Polym. Degrad. Stab., 91(12) 3266-3273, December 2006. 

J.R. Ebdon, D. Price, B.J. Hunt, P. Joseph, F. Gao, G.J. Milnes, and K.L. Cunhffe, Flame retardance in some polystyrenes and poly(methyl methacrylate)s with covalently bound phosphorus-containing groups Initial screening experiments and some laser pyrolysis mechanistic studies. Polym. Degrad. Stab., 69, 267-277 (2000). 

Costa, L. Camino, G. Thermal degradation of polymer-fire retardant mixtures Part VII—Products of degradation and mechanism of fire retardance in polystyrene-chloroparaffin mixtures, Polymer Degradation and Stability, 1985, 12(4), 287-296. 

Kaspersma, J. Doumen, C. Munro, S. Prins, A. M. Fire retardant mechanism of aliphatic bromine compounds in polystyrene and polypropylene, Polymer Degradation and Stability, 2002, 77(2), 325-331. 

Price, D., Cunliffe, L. K., Bullett, K. J., Hull, T. R., Milnes, G. J., Ebdon, J. R., Hunt, B. J., and Joseph, R, Thermal behaviour of covalently bonded phosphate and phosphonate flame retardant polystyrene systems, Polym. Degrad. Stab., 2007, 92, 1101-1114. 

SCHEME 8.1 Silylation of polystyrene (left) and poly(vinyl alcohol) (right). (From Ebdon, J.R. et al., Polym. Degrad. Stab., 54, 395, 1996. With permission.)... 

H. Nanbu, Y. Sakuma, Y. Ishihara, T. Takesue, and T. Ikemura, Catalytic degradation of polystyrene in the presence of aluminum chloride catalyst, Polym. Degrad. Stab., 19, 61-76 (1987). 

End-chain scission the polymer is broken up from the end groups successively yielding the corresponding monomers. When this polymer degrades by depolymerization, the molecules undergo scission to produce unsaturated small molecules (monomers) and another terminal free radicals. (Polymethylmethacrylate, polytetrafluorethylene, polymethacrylonitrile, polyethylstyrene, polystyrene, polyisobutene)... 

K. -H. Lee, D. -H. Shin and Y. -H. Seo, Liquid-phase catalytic degradation of mixtures of waste high-density polyethylene and polystyrene over spent FCC catalyst. Effect of mixing proportions of reactant. Polymer Degrad. Stab., 84, 123-127... 

Solid organophosphite antioxidant that provides color stability, reduces polymer degradation, and improves gas fading performance in many resins. It may be used in polyethylene, polypropylene, polystyrene, polyesters, elastomers, PVC and thermoplastics. 

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