Citation: Changjie Yin, Boyu Wang, Dantong Qiao, Huimin Li. Polymer Comprehensive Experimental Design: Preparation and Properties of Repeatable Processing Styrene Butadiene Rubber Materials under the “Dual Carbon” Strategy[J]. University Chemistry, ;2025, 40(11): 221-232. doi: 10.12461/PKU.DXHX202412046 shu

Polymer Comprehensive Experimental Design: Preparation and Properties of Repeatable Processing Styrene Butadiene Rubber Materials under the “Dual Carbon” Strategy

School of Chemistry and Chemical and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

Corresponding author: Changjie Yin, yinchangjie@nwpu.edu.cn
Received Date: 4 December 2024
Revised Date: 25 March 2025

To enhance students’ understanding of the “dual carbon” strategy, this experimental teaching design focuses on reprocessable rubber materials. First, a novel crosslinking agent (B-KH580) was synthesized through the reaction between 1,4-phenyldiboronic acid and (3-mercaptopropyl)triethoxysilane. Subsequently, B-KH580 was blended with styrene-butadiene rubber (SBR), followed by hot-pressing at 160 °C to obtain boronate ester-crosslinked SBR. The incorporation of abundant reversible dynamic covalent boron-oxygen bonds (―B―O―) enables the rubber material to exhibit excellent reprocessability. After reprocessing, the material maintains over 95% of its original tensile strength, over 84% of its elongation at break, and over 87% of its Young’s modulus. This experimental approach not only introduces cutting-edge research into laboratory teaching but also provides students with a tangible demonstration of the “dual carbon” strategy.
- Dual carbon,
- Dynamic covalent bond,
- Reprocessable,
- Rubber,
- Bond of borate ester,
- Experimental teaching
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