Publications by authors named "Maozhu Tang"
A small amount of terminal polar phase endows natural rubber (NR) with excellent comprehensive properties superior to those of synthetic isoprene rubber. In this work, the comprehensive properties of synthetic rubber were remarkably improved by introducing a stable terminal nanoconfinement structure by combining terminal hydroxyl groups and pentapeptide molecules noncovalently into the same phases. The results show that the stable terminal phases hardly affect the free chain motion but enhance the entanglement.
View Article and Find Full Text PDFInfluence of Oligopeptide Length and Distribution on Polyisoprene Properties.
Polymers (Basel)
December 2021
Article Synopsis
- The study focuses on enhancing synthetic polyisoprenes to mimic natural rubber by tuning the binding modes of polar groups attached to them.
- By modifying the lengths and distributions of oligopeptides within polyisoprene chains, researchers discovered significant effects on the material's mechanical properties and dynamic behavior.
- The findings indicate that longer oligopeptides and specific block arrangements lead to improved mechanical strength and more organized microstructures, while the binding modes of these peptides do not notably impact the entanglement of polyisoprene chains.
Towards a Supertough Thermoplastic Polyisoprene Elastomer Based on a Biomimic Strategy.
Angew Chem Int Ed Engl
November 2018
Article Synopsis
- * A new thermoplastic version, B-4A-PIP, was created using tetra-analine for crosslinking, resulting in impressive mechanical properties with a tensile strength of 15 MPa and a breaking strain of 890%.
- * In contrast, another variant, R-4A-PIP, showed significantly lower strength and crystallization properties despite having similar molecular weight and tetra-analine content as B-4A-PIP.
Article Synopsis
- - Oleic acid modified iron oxide nanoparticles (IONs) were synthesized and integrated with styrene-butadiene-styrene (SBS) block copolymer, resulting in selective confinement of IONs in polybutadiene (PB) domains based on the IONs' size relative to the lamellar thickness.
- - The dispersion of IONs is influenced by their size compared to the PB layer thickness, with optimal concentration observed when the particle diameter is around half the lamellar thickness, leading to a stable microphase-separated structure.
- - At higher ION loading (over 16.7 wt%), the phase separation of SBS shifts from a lamellar to a cylindrical structure, as IONs start to cluster