A series of diorganotin (IV) derivatives of R2SnL2 (R = Me, Et, n-Bu, ph or Cl; L = L1 or L2) and their corresponding mixed-ligand complexes R2Sn (L1)(L2) have
Polycaprolactone( PCL) is important as abiodegradable and biocompatible material.It iscommonly prepared by the ring- opening polymer-ization ofε- caprolactone(