The development of polymeric materials from bio‐based feedstocks is highly urgent due to growing environmental concerns and the rapid depletion of limited fossil resources. However, bio‐based polymeric materials usually possess only moderate performance, drastically undermining their potential applicability. Herein, bioinspired nucleobase‐containing polymers with eminent toughness and outstanding adhesive properties by harnessing the complementary hydrogen‐bonding (H‐bonding) interactions are developed. Efficient thiol‐ene polymerization is carried out to produce the nucleobase‐functionalized homopolymers and statistical copolymers. In contrast to the individual homopolymers, the supramolecular mixtures of the homopolymers display much better energy dissipation and damping capacity on account of intermolecular complementary H‐bonding interactions. More remarkably, the nucleobase‐containing copolymers possessing both inter‐ and intramolecular complementary H‐bonding interactions exhibit outstanding toughness as high as 73.8 MJ m−3. In addition to the outstanding mechanical properties, the unique interfacial adhesive propensity of nucleobases endows the polymeric materials with an ultra‐strong adhesion strength as high as 16.2 MPa. This work represents an important and universal bioinspired strategy to construct robust polymeric materials by rationally designing both inter‐ and intramolecular H‐bonding networks.
Renewable plant oil-based polymeric materials are promising to replace current petroleum-based polymers, considering its low cost and renewability. However, weak intermolecular interaction within the plant oil-based polymeric materials usually gives...
Frost-resistant and anti-icing polymeric coatings are widely used for various industries for the extremely low temperatures that often appear in winter. Among different icephobic materials, nontoxic fluorinefree polysiloxanes with a low surface energy present tremendous potential to be utilized as passive icephobic coatings. However, conventional polysiloxanes from limited petroleum-based feedstocks potentially lead to serious resource crisis and environmental concerns. In this work, renewable plant oil-based polysiloxanes were prepared and exploited as passive frost-resistant and anti-icing materials. Renewable plant oil-based diene monomers were polymerized with 1,1,3,3-tetramethyldisiloxane through highly efficient hydrosilylation reactions to yield polysiloxanes. The optimized polysiloxane coating is efficient for the removal of the accumulated ice/frost by natural forces such as wind blowing and gravity. The icephobic coating has an ice adhesion strength as low as 84.8 kPa, presenting great potential for efficient anti-icing and frostresistant applications. The eminent passive anti-icing and frost resistance properties of the renewable plant oil-based polysiloxane coating could be attributed to its combination of low crystallinity and high chain mobility. The development of biomass-based polysiloxanes offers us an efficient route to access high value-added passive frost-resistant and anti-icing coatings.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.