When the graft ratio was high, the hydrophilic side chain was long and the molecular mass of the main chain of the hydrophilic matrix was great, the diffusion of PP-g-PEG in PP blends would be poor, and the diffusion coefficient would also be small.
When the graft ratio was high, the hydrophilic side chain was long and the molecular mass of the main chain of the hydrophilic matrix was great, the diffusion of PP-g-PEG in PP blends would be poor, and the diffusion coefficient would also be small.
接枝率越高、亲水性侧链的长度越长，亲基体主链摩尔质量越大，接枝共聚物在聚丙烯共混体系中的迁移扩散性能越差，扩散系数越小。