Zeolite high-density polyethylene

Recently, Ramamurthy and Weiss and their coworkers reported the photo-Fries rearrangement of three 1-naphthyl phenylacelates (Fig. 36) in cation-ex-changed zeolite Y and high-density polyethylene films [193], When the substrates were irradiated in hexane to <30% conversion, the eight photoproducts in Fig. 36 were detected. The photoproduct distributions from polyethylene or a Y-zeolite are drastically different from those in solution. Cage-escape products (54 and 55) are absent in both constrained media, and in zeolite Y, only 49 was detected. The... 

Y. H. Lin, P. N. Sharratt, A. A. Garforth, and J. Dwyer, Deactivation of US-Y Zeolite by Coke Formation dnring the Catalytic Pyrolysis of High Density Polyethylene, Thermochim. Acta, 294, 45-50 (1997). 

W. Ding, J. Liang, and L. L. Anderson, Hydrocracking and hydroisomerization of high-density polyethylene and waste plastic over zeolite and silica-alumina supported Ni and Ni-Mo sulfides. Energy Fuel, 11, 1219-1224 (1997). 

G. Manos, A. Garforth and J. Dwyer Catalytic Degradation of High Density Polyethylene on an Ultrastable Y Zeolite. Nature of Initial Polymer Reactions, Pattern of Formation of Gas and Liquid Products, Temperature Effects. Industrial Engineering Chemistry Research, 39, 1203 (2000). 

G. Manos, A. Garforth, and J. Dwyer, Catalytic degradation of high-density polyethylene over different zeolitic structures, Ind. Eng. Chem. Res., 39, 1198 (2000). X. Ji, J. L. Qian, and J. Q. Wang, Study on the conversion of polypropylene waste to oil in a fluidized bed reactor. Energy Sources, 23, 157, (2001). 

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