Gamma radiation effects on random copolymers based on poly(butylene succinate) for packaging applications

Negrin, M.; Macerata, Elena; Consolati, G.; Quasso, F.; Genovese, Laura; Soccio, Michelina; Giola, Marco; Lotti, Nadia; Munari, Andrea

doi:10.1016/j.radphyschem.2017.05.011

Cited by 20 publications

(16 citation statements)

References 47 publications

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“…This increase of the crystallinity degree is related to the energy increase in the system, which allowed extra mobility, and consequently, the formation of new crystalline structures inside materials. This phenomenon was already discussed in the literature …”

Section: Resultssupporting

confidence: 61%

Oil Biodegradation Systems Based on γ Irradiated Poly (Butylene Succinate)

Caetano

Bedor

Jesus

et al. 2018

Macromolecular Symposia

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The risks of environmental damage are inherent in oil activities, being a constant concern to our modern society. Among the remediation strategies, the biological one is safer and more inexpensive compared to physic‐chemicals approaches. Bioremediation can be enhanced using biodegradable polymers as coating materials of the nutrient release systems. However, some of these polymers can be improved using electromagnetic radiation, able to modify their properties, such as, molar mass, changing the materials physicochemical behavior. Thus, immobilizing urea in poly (butylene succinate) (PBS) matrix, producing a petroleum bioremediation tool was the primary goal in the paper herein. The composites were obtained by melting at 110 °C with subsequent application of gamma (γ) radiation at doses of 15, 25, 50, and 75 kGy. The obtained results allowed to infer that the increase of the γ radiation doses improved the immobilization, thus reducing the immediate urea release. Besides that, the preliminary biodegradation results showed that the highest rates of hydrocarbon reduction at the end of the analysis period were reached using the material irradiated at 25 kGy. These results are encouraging and proved that irradiated PBS‐urea systems could be used as oil spill disasters tool.

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Section: Resultssupporting

confidence: 61%

Oil Biodegradation Systems Based on γ Irradiated Poly (Butylene Succinate)

Caetano

Bedor

Jesus

et al. 2018

Macromolecular Symposia

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“…Poly(butylene succinate) (PBS) polymer is fabricated by a polycondensation process involving succinic acid and 1,4-butanediol [5]. Attractive reasons to select PBS are its promising physical and mechanical properties with high biodegradability and degrees of processing [6,7]. PBS polymer is highly stable until about 350 • C, and starts degrading with mass loss at 390 • C. This proves that PBS has better thermal stability than the PLA polymer, which shows major mass loss at 365-385 • C [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Lignin Modification on Properties of Kenaf Core Fiber Reinforced Poly(Butylene Succinate) Biocomposites

et al. 2019

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In this study, the effects of lignin modification on the properties of kenaf core fiber reinforced poly(butylene succinate) biocomposites were examined. A weight percent gain (WPG) value of 30.21% was recorded after the lignin were modified with maleic anhydride. Lower mechanical properties were observed for lignin composites because of incompatible bonding between the hydrophobic matrix and the hydrophilic lignin. Modified lignin (ML) was found to have a better interfacial bonding, since maleic anhydrides remove most of the hydrophilic hydrogen bonding (this was proven by a Fourier-transform infrared (FTIR) spectrometer—a reduction of broadband near 3400 cm−1, corresponding to the –OH stretching vibration of hydroxyl groups for the ML samples). On the other hand, ML was found to have a slightly lower glass transition temperature, Tg, since reactions with maleic anhydride destroy most of the intra- and inter-molecular hydrogen bonds, resulting in a softer structure at elevated temperatures. The addition of kraft lignin was found to increase the thermal stability of the PBS polymer composites, while modified kraft lignin showed higher thermal stability than pure kraft lignin and possessed delayed onset thermal degradation temperature.

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“…PBS polymer can be obtained from the polycondensation process of 1,4-butanediol and succinic acid [19]. PBS has virtuous physical and mechanical properties, good processability, and biodegradability for a wide range of applications [20]. PBS polymer is more stable under flowing nitrogen at temperatures below 220 °C with the rate of mass loss reaching a maximum at 390 °C, showing it has better thermal stability than PLA polymer (with a maximum at 365–385 °C) [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Modified Tapioca Starch on Mechanical, Thermal, and Morphological Properties of PBS Blends for Food Packaging

et al. 2018

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In this study, polybutylene succinate (PBS) was blended with five types of modified tapioca starch to investigate the effect of modified tapioca starch in PBS blends for food packaging by identifying its properties. Tensile and flexural properties of blends found deteriorated for insertion of starch. This is due to poor interface, higher void contents and hydrolytic degradation of hydrophilic starch. FTIR results show all starch/PBS blends are found with footprints of starch except OH stretching vibration which is absent in B40 blends. Besides, Broad O–H absorption in all specimens show that these are hydrogen bonded molecules and no free O–H bonding was found. SEM testing shows good interfacial bonding between PBS and starch except E40 blends. Therefore, poor results of E40 blends was expected. In TGA, a slightly weight loss found between 80 to 100 °C due to free water removal. Apart from this, insertion of all types of starch reduces thermal stability of blend. However, high crystallinity of starch/PBS blend observed better thermal stability but lower char yield. Starch A and B blends are suggested to be used as food wrap and food container materials while starch D blend is suitable for grocery plastic bags according to observed results.

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Gamma radiation effects on random copolymers based on poly(butylene succinate) for packaging applications

Cited by 20 publications

References 47 publications

Oil Biodegradation Systems Based on γ Irradiated Poly (Butylene Succinate)

Oil Biodegradation Systems Based on γ Irradiated Poly (Butylene Succinate)

Effect of Lignin Modification on Properties of Kenaf Core Fiber Reinforced Poly(Butylene Succinate) Biocomposites

Effect of Modified Tapioca Starch on Mechanical, Thermal, and Morphological Properties of PBS Blends for Food Packaging

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