1 Kim M G , Nieh W L, Sellers Jr T,Wilson W W, Mays J W. Ind Eng Chem Res, 1992,31: 973~979 2 Tonbiason F L, Schwarz F E. Macromolecules, 1972, 5: 321~325 3 Mechin B, Hanton D, Le Goff J, Tanneur JP. Eur Polym J, 1984,20: 333~341 4 Mechin B, Hanton D, Le Goff J, Tanneur JP. Eur Polym J, 1986,22: 115~124 5 Duval M, Block B, Kohn S. J. Appl Polym Sci, 1972,16: 1585~1602 6 Dargaville T R,Guerzoni F N, Looney M G, Shipp D A, Solomon D H, Zhang X J. Polym Sc. Part A: Polym Chem, 1997,35:1399—1407 7 Prokai L, Simonsick W J. Macromolecules, 1992, 25: 6532~6539 8 Jurgen H G , Norbert Nieth, H. Bernhard Linden, Ulrike Blumbach , Frank J Richter,Michael E Tauchert , Rolf Tompers. Anal Bioanal Chem 2006, 386: 52~58