AACS Applied Polymer Materials4/24/2026A Water-Resistant Poly(Vinyl Alcohol) Film Grafted by Sodium Lignosulfonate for Biocompatible Polymer ActuatorsLi Ma·Dongjie Guo·Jiyu Tian·Xiaowei Guo·Lehui Wang·Wentong YangRead at ACS Applied Polymer MaterialsTagsAdvanced Materials and MechanicsMechanical Engineering