Block copolymers of tetrahydrofuran and styrene were prepared by using
stable free radical polymerization (SFRP) of styrene with 2,2,6,6-tet
ramethyl-1-piperidinyl-1-oxy (TEMPO) terminated polytetrahydrofuran (P
THF). For this purpose azo containing PTHFs were prepared and reacted
with TEMPO. (C) 1997 Elsevier Science Ltd.