Nanostructured tricontinuous block polymers allow for the preparation of single-component materials that combine multiple properties. We demonstrate the synthesis of a mesoporous material from the selective orthogonal etching of a microphase-separated tricontinuous block polymer precursor. Using the synthetic approach of polymerization-induced microphase separation (PIMS), divinylbenzene (DVB) is polymerized from a mixture of poly(isoprene) (PI) and poly(lactide) (PLA) macro-chain transfer agents. In the PIMS process in situ cross-linking by the DVB arrests structural coarsening, resulting in a disordered block polymer morphology that we posit exhibits three nonintersecting continuous domains. Selective etching of the PI domains by olefin cross metathesis and PLA domains by hydrolytic degradation produces a mesoporous polymer with two independent pore networks arising from the different etch mechanisms.

中文翻译：

---

通过聚合诱导微相分离的三连续纳米结构聚合物

纳米结构的三连续嵌段聚合物允许制备具有多种特性的单组分材料。我们展示了从微相分离的三连续嵌段聚合物前体的选择性正交蚀刻中合成介孔材料。使用聚合诱导微相分离 (PIMS) 的合成方法，二乙烯基苯 (DVB) 由聚 (异戊二烯) (PI) 和聚 (丙交酯) (PLA) 大链转移剂的混合物聚合而成。在 PIMS 过程中，由 DVB 进行的原位交联阻止了结构粗化，导致我们认为呈现出三个不相交的连续域的无序嵌段聚合物形态。