The crucial role of the diffusion layer in externally controlled heterogeneous reversible deactivation radical polymerization systems: A case study of eATRP. - Tang, Long; Jin, Jie; Xiong, Juan; Guo, Jun‐Kang; Huang, Xin‐Yi; Zhou, Yin‐Ning; Luo, Zheng‐Hong; Yin, Shuang‐Feng (AIChE Journal, 2025)