After the effect of different phospholipid molecules on the formation of phase transition area was taken into account, the modified state equation for the phospholipid monolayer was derived.

• 结果表明,该模型能较好地描述磷脂单分子膜在整个呼吸压缩舒张过程中的表面特性,特别是在相变区域,模型值与实验值也能吻合良好。