Low molecular weight polystyrene with 1-chloro-1-phenylethyl terminal functionality was prepared in high yields by quasiliving atom transfer radical polymerization. The resulting endgroup was converted via carbocationic intermediates to unreactive methyl chain ends with trimethylaluminum and to allyl termini with allytrimethylsilane in the presence of TiCl4. 1H NMR analysis indicated that both methylation and allylation were quantitative, and chain scission and coupling can be excluded on the basis of GPC measurements. It was also demonstrated that the allyl endgroup can be transformed to α-hydroxyl or epoxy chain ends, i. e. new endfunctional polystyrenes and macromonomers were obtained.
|Number of pages||12|
|Journal||ACS Symposium Series|
|Publication status||Published - Dec 1 2000|
ASJC Scopus subject areas
- Chemical Engineering(all)