Poly(butylene succinate- co -salicylic acid) copolymers and their effect on promoting plant growth

Abstract

Biodegradable random copolymers were successfully synthesized by melt polycondensation of poly(butylene succinate) (PBS) and salicylic acid (SA). The obtained copolymers were characterized by proton nuclear magnetic resonance spectroscopy. The effect of different SA contents on the properties of copolymers was investigated by universal testing machine, thermogravimetric analyser, differential scanning calorimetry and X-ray diffraction analysis. The results showed that the copolymers with 0.5% SA contents exhibited excellent elastic modulus (1413.0 MPa) and tensile strength (192.8 MPa), and similar thermal decomposition temperature (≈320°C) compared with pure PBS. By molecular docking simulations, it was proved that the degradability of copolymers was more effective than that of pure PBS with a binding energy of −5.77 kcal mol −1 . PBS copolymers with a small amount of SA were not only biodegradable but could stimulate the growth of green vegetables. So biodegradable copolymers can be used over a wide range as they are environmentally friendly.

A Review on Current Strategies for the Modulation of Thermomechanical, Barrier, and Biodegradation Properties of Poly (Butylene Succinate) (PBS) and Its Random Copolymers

“…The copolymerization of PBS with salicylic acid was studied as an attempt to produce polymer films with potential applications in agricultural applications. Enzymatic degrada-tion assays carried out in the presence of Candida antarctica lipase B (CALB) showed very low degradation after 20 days (~1.5 wt% for neat PBS); however, the addition of salicylic acid increased this value up to ~3.5 wt% [158].…”

Current progress towards understanding the biodegradation of synthetic condensation polymers with active hydrolases

“…Instead of only focusing on the degradation mechanisms and coating loss, they evaluated how the degradation of the polymer promoted the growth of a Chinese cabbage. 69 The authors indicated that the inclusion of salicylic acid (which can lead to improved plant resistance to pathogens) 70 increased the rate of degradation by the lipase compared to poly(butylene succinate) without salicylic acid; the root cause of this effect was purported to be increased crystallinity. However, we need to continue to make comparisons between hydrolases on comparable polymer blends so that we obtain more quantitative measurements of activity and mechanisms as more recombinant and native hydrolases are isolated.…”

Stable Fluorescent Nanoparticles Based on Co-assembly of Acifluorfen and Poly(salicylic acid) for Enhancing Herbicidal Activity and Reducing Environmental Risks

“…A hyperbranched polyester (HBPE) based on SA increased twice in fluorescence intensity compared to the acyl chloride terminated HBPE and proved more effective than standard antibacterial drugs such as ciprofloxacin and clotrimazole in inhibiting bacteria and fungi . The copolymer prepared by using butylene succinate (PBS) and SA as raw materials not only significantly enhanced the degradation performance of PBS but also released SA continuously during the degradation process to promote the growth of vegetables . Therefore, SA and PSA exhibit robust fluorescence properties due to the fluorescent group in the molecule structure and afford a broad application prospect.…”