특성구조액체이론(significant structure theory of liquids)에 입각하여, 섞이지 않는 두 용융 고분자중에서의 계면장력을 예측하는 간단한 계산방법을 연구하였다. 접착에너지는 응집에너지들의 기하평균과 보정항의 곱으로 표시되며, 응집에너지는 고분자 사슬의 격자상을 가정하므로써 계산된다. 계면장력올 계산함에 있어서 고분자사슬의 구성요소간 분산력(dispersion force) 외에 극성력(poIar force)를 포함시켜야 함이 확인되었다
A simple method to calculate the interfacial tension between two immiscible molten polymers has been developed. The theory is based on the significant structure theory of liquids. The energy of adhesion is expressed as a geometric mean of the cohesion energies multiplied by correction factor $({Phi}12)$, ${Delta}E_{12}={Phi}_{12}sqrt{{Delta}E_{11}{Delta}E_{22^{circ}}$. In the calculation of ${Delta}E_{11};and;{Delta}E_{22}$, a quasilattice of polymer chains has been assumed. It is assured that, besides the dispersion force, the polar force interactions between polymer constituent groups should be considered in the calculation of the interfacial tensions
