Formulation, performance and environmental/agricultural benefit analysis of biomass-based biodegradable mulch films: A review

Li, Xinglin; Zheng, Guanfeng; Li, Zhiyu; Fu, Peng

doi:10.1016/j.eurpolymj.2023.112663

Cited by 11 publications

(2 citation statements)

References 78 publications

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“…The glass transition temperatures (Tg) of PBS[0T; 1.0P; 210; Mg] and PBS[0T; Ti; 230] measured on DSC curves were both -34 °C, and they showed a slight increase upon the incorporation of BHET units, with both PBS[xT; 1.0P; 210; Mg] and PBS[xT; Ti; 230] (x = 5.0, 10,15,20) series showing Tg signals ranging from -30 °C to -24 °C, with higher Tg values corresponding to a higher BHET content. This same systematic trend was also evident in dynamic mechanical analysis (DMA).…”

Section: Entrymentioning

confidence: 99%

“…One promising approach to address these concerns is through closed-loop recycling of post-consumer polymers, often referred to as a circular economy [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. However, in certain sectors, such as agriculture, recycling can be inherently challenging, making the promotion or enforcement of biodegradable polymers a viable alternative [ 10 , 11 , 12 ]. In this context, various types of biodegradable polymers have been explored [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

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Ductile Copolyesters Prepared Using Succinic Acid, 1,4-Butanediol, and Bis(2-hydroxyethyl) Terephthalate with Minimizing Generation of Tetrahydrofuran

Park,

Seo,

Seo

et al. 2024

Polymers

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Poly(1,4-butylene succinate) (PBS) is a promising sustainable and biodegradable synthetic polyester. In this study, we synthesized PBS-based copolyesters by incorporating 5–20 mol% of –O2CC6H4CO2– and –OCH2CH2O– units through the polycondensation of succinic acid (SA) with 1,4-butanediol (BD) and bis(2-hydroxyethyl) terephthalate (BHET). Two different catalysts, H3PO4 and the conventional catalyst (nBuO)4Ti, were used comparatively in the synthesis process. The copolyesters produced using the former were treated with M(2-ethylhexanoate)2 (M = Mg, Zn, Mn) to connect the chains through ionic interactions between M2+ ions and either –CH2OP(O)(OH)O− or (–CH2O)2P(O)O− groups. By incorporating BHET units (i.e., –O2CC6H4CO2– and –OCH2CH2O–), the resulting copolyesters exhibited improved ductile properties with enhanced elongation at break, albeit with reduced tensile strength. The copolyesters prepared with H3PO4/M(2-ethylhexanoate)2 displayed a less random distribution of –O2CC6H4CO2– and –OCH2CH2O– units, leading to a faster crystallization rate, higher Tm value, and higher yield strength compared to those prepared with (nBuO)4Ti using the same amount of BHET. Furthermore, they displayed substantial shear-thinning behavior in their rheological properties due to the presence of long-chain branches of (–CH2O)3P=O units. Unfortunately, the copolyesters prepared with H3PO4/M(2-ethylhexanoate)2, and hence containing M2+, –CH2OP(O)(OH)O−, (–CH2O)2P(O)O− groups, did not exhibit enhanced biodegradability under ambient soil conditions.

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Section: Entrymentioning

confidence: 99%