Abstract: The syntheses and characterizations of 1, 2-bis (1 l-mercaptoundecanoyl)-sn- glycero-3-phosphocholine (la), 1, 2-bis (l6-mercaptohexadecanoyl)-sn-glycero-3- phosphocholine (lb), and 1, 2-bis (2-mercaptohexadecanoyl)-sn-glycero-3-phosphocholine (2) are reported. Each of these phospholipids has been used to construct vesicles that can be oxidatively polymerized by using hydrogen peroxide as well as reductively ...