Table 1. Block Lengths of PCL–PEG–PCL Copolymer Diols.

copolymer diols	theoretical block length of PCL–PEG–PCL	calculated block length of PCL–PEG–PCL
PEG–PCL(24k)	2000–20 000–2000	1863–20 000–1863
PEG–PCL(22k)	1000–20 000–1000	1151–20 000–1151