5Sanders D C,Sands J L, Stahl R J. Aromatic bromination of polysryrene using bromine as solvent[P].EP:0277429,1988.
6Barda H J, Gray S L. Process for the bromination of polystyrenes[P].US:4352909,1982-10-5.
7George A Olah, Shiro Kobayashi, Masshi Tashiro. Aromatic substitution XXX.Friedel-crafts benzylation of benzene and toluene with benzyl and substituted benzul halids[J].Journal of American Society,1972,(94):7448-7461.
8Gill J C, James L. Dever brominated polysturene having improved thermal stability and color and process for the preparation[P].US:0035214,2002-03-21.
9Atwell R W, Hodgen H A.Polymers of brominated styrene[P].US:5369202,1994-11-29.
