1. Hildebrand enthalpy of mixing (混合焓) 1-1+ 2-2- 1-2+ 1-2 1: solvent; 2: polymer △E,△E (AE/v) cohesive energy density △H △FN-2 P 12 (摩尔内聚能密度) l2 total pairs of「-2 △H nx ()(月)-6= l/2 1/2 l/2 △E 产=Vn △E1 △E2 V2 VI n[1-82] -(AE/v): solubility parameter (溶度参数)1. Hildebrand enthalpy of mixing (␧ਸ❃) 9 2 1/ 2 1 2 2 / 1 2 1 mix E v H E v § · § ·§ · '  ¨ ¸ ¨ ¸¨ ¸ © ¹© ¹ © ' ¹ ' ('E/v) cohesive energy density (᪙ቄ޵㚊㜭ᇶᓖ) G=('E/v) 1/2 : solubility parameter (ⓦᓖ৲ᮠ) 1-1 + 2-2 1-2 + 1-2 1 1 2 2 1 2 1 2 2 mix E E E E v v v v H § ' · '   ¨ ¸ © ' ¹ ' ' 1: solvent; 2: polymer P12 2 2 2 1/2 1 1 2 1 / 1 2 m E v E v V I I ' § · § ·§ ·  ¨ ¸ ¨ ¸¨ ¸ © ¹© ¹ © ¹ ' > 2 @ 2 Vm 1 2 I 1  I G G 2 2 2 m n V V I1 I m m V V § · ¨ ¸ © ¹ P12 total pairs of [1-2] 2 2 n V 1 1 1 m nV V I 2 1/2 1 1 / 2 2 2 1 E v E v § · § ·§ ·  ¨ ¸ ¨ ¸¨ ¸ ' © ¹© ¹ © ¹ ' 1 1 nV I2 m m V V § · ¨ ¸ © ¹