“Nanoporous poly(ether sulfone) from polylactide-b-poly(ether sulfone)-b-polylactide precursor”, Jinhee Lee, Jongmin Park, Jaehoon Oh, Sanghwa Lee, Sang Youl Kim and Myungeun Seo was published in Polymer.
Link: https://www.sciencedirect.com/science/article/pii/S0032386119307104