POLYMER, vol. 40, no. 26, page. 7227 - 7231, 1999-12
MACROMOLECULAR CHEMISTRY AND PHYSICS, vol. 200, no. 10, page. 2188 - 2204, 1999-10
MACROMOLECULES, vol. 31, no. 2, page. 344 - 348, 1998-01-27
POLYMER, vol. 37, no. 25, page. 5747 - 5749, 1996-12
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 17, no. 7, page. 648 - 653, 1996-07-20