Dual superlyophobic materials were fabricated via a simple hydrothermal method for non-loss liquid transportation and oil-water separation.

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Superhydrophobic surfaces have aroused great attention to fundamental and scientific researches. However, they have poor durability when they are exposed to a condition of high temperature or external forces. Herein, a durable superhydrophobic cellulose film against extreme high temperature and mechanical force is reported. ZnO nano‐ and microrods are constructed on cellulose using an effective, simple, and environmentally benign one‐step hydrothermal method without any crystal seeds or morphology controlling agents. After being modified with stearic acid, the cellulose film becomes superhydrophobic with a static contact angle of 154.1° and rolling angle of 6.9°. The superhydrophobic cellulose film shows excellent water‐repellent property even under dynamic water pressure, while it exhibits oleophilic nature under water, which can solve water pollution caused by heavy oil residuals. It is further found that it displays durable superhydrophobicity even if heated at 200 °C for 1 h or strongly scratched by knife. And heat treated films have better stability of superhydrophobicity under extreme condition with pH region from 3 to 11. These properties facilitate its applications of harsh conditions.

Poly(ethylene succinate)-b-poly(butylene succinate) (PES-b-PBS) multiblock copolymers with different block lengths and compositions were synthesized, and their chemical structure, molecular weights, and polydispersity index of the copolymers were characterized by 1 H NMR and GPC, respectively. The miscibility and crystallization of PES and PBS blocks in the copolymers were investigated by DSC. The results suggested that PES and PBS blocks are miscible in copolymers with shorter block lengths, while they are partially miscible in those with longer block lengths. The crystallization of PBS blocks were depressed with an increase in PES content due to the diluent effect, and that of PES blocks was largely restricted when its content was less than the PBS block, while that was improved when its content was more than that of the PBS block due to the nucleation effect of previously crystallized PBS. The results of tensile test suggest that all the copolymers showed excellent mechanical property.

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