Electron beam treatment of polylactide at elevated temperature in nitrogen atmosphere

Huang, Ying; Gohs, Uwe; Müller, M.; Zschech, Carsten; Wießner, Sven

doi:10.1016/j.radphyschem.2019.02.053

Cited by 20 publications

(24 citation statements)

References 34 publications

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“…G s and G x are the radiation efficiency of degradation and crosslinking process (mol/J), D is the absorbed dose (Gy = J/kg). 36 If the ratio of G s /G x is greater than 4, it indicates that the chain scission dominates in the process. (3) and (4) is strictly true for systems of the initial molecular weight distribution close to 2.…”

Section: Structural Propertiesmentioning

confidence: 99%

The effects of electron beam radiation on material properties and degradation of commercial PBAT/PLA blend

Iuliano

Nowacka

Rybak

et al. 2019

J of Applied Polymer Sci

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This work investigates the potential application of e-beam radiation for sterilization of food packaging made of commercial polyester blend of poly(butylene adipate-co-terephthalate) and polylactide known under the trade name Ecovio 23B1. Ecovio film was irradiated at doses of 5, 13, and 26 kGy and the effect of sterilization on the microorganism inactivation ability was performed. The influence of radiation doses on structural and packaging properties such as tensile strength, barrier, and migration properties was also studied. 1 H NMR and FTIR analysis revealed no significant changes in the polymer structure, however, the molar mass of irradiated samples decreased with increasing radiation dose. This result indicated the occurrence of degradation process during radiation, which was confirmed by the thermal analysis and accelerated enzymatic degradation. The packaging properties did not changed significantly and the overall migration for 10% ethanol, isooctane, and MPPO was below the limit for all of the studied samples.

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Section: Structural Propertiesmentioning

confidence: 99%

The effects of electron beam radiation on material properties and degradation of commercial PBAT/PLA blend

Iuliano

Nowacka

Rybak

et al. 2019

J of Applied Polymer Sci

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“…Research into e-beam radiation modification of biodegradable polyesters is fairly limited, with poly (lactic acid) [ 23 , 24 , 25 ] and polycaprolactone [ 26 , 27 ] being the most intensely investigated materials, and other research including poly(butylene succinate) [ 28 ], bacterial polyesters-poly (hydroxyalkanoate) [ 29 ], and poly-(R)-3-hydroxybutyrate [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Physical Effects of Radiation Modification of Biodegradable Xylitol-Based Materials Synthesized Using a Combination of Different Monomers

et al. 2021

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There is a possibility of obtaining xylitol-based elastomers sharing common characteristics of biodegradability, thermal stability, and elastomeric behavior by using monomers with different chain-lengths. Therefore, we have synthesized eight elastomers using a combination of four different diols (ethanediol, 1.3-propanediol, 1.4-buanediol, and 1.5-pentanediol) and two different dicarboxylic acids (succinic acid and adipic acid). The obtained materials were further modified by performing e-beam treatment with a dose of 100 kGy. Materials both before and after radiation modification were tested by DSC, DMTA, TGA, tensile tests, gel fraction determination, hydrolytic and enzymatic degradation tests, 1H NMR and 13C NMR and FTIR.

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“…There is an additional advantage if such polymers react well to radiation modification, which allows to improve their properties in a time-, energy-, and space-saving way that is easy to control and operate [ 1 ]. Such materials described in the literature are polylactide [ 2 , 3 , 4 ], polycaprolacone, [ 5 , 6 ], poly(butylene succinate) [ 7 ], poly(hydroxyalkanoate) [ 8 ], poly-(R)-3-hydroxybutyrate [ 9 ], and sugar-alcohol-based polyesters [ 10 , 11 , 12 ]. Materials belonging to this last group are elastomers synthesized by the polycondensation reaction of a sugar alcohol, such as xylitol, and a dicarboxylic acid, which leads to obtaining poly(polyol dicarboxylate) polyesters [ 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

E-Beam Effects on Poly(Xylitol Dicarboxylate-co-diol Dicarboxylate) Elastomers Tailored by Adjusting Monomer Chain Length

et al. 2021

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Poly(xylitol dicarboxylate-co-diol dicarboxylate) elastomers can by synthesized using wide variety of monomers with different chain lengths. Obtained materials are all biodegradable, thermally stable elastomers, but their specific properties like glass transition temperature, degradation susceptibility, and mechanical moduli can be tailored for a specific application. Therefore, we synthesized eight elastomers using a combination of two dicarboxylic acids, namely suberic and sebacic acid, and four different diols, namely ethanediol, 1,3-propanediol, 1,4-buanediol, and 1,5-pentanediol. Materials were further modified by e-beam treatment with a dose of 100 kGy. Materials both before and after radiation modification were tested using tensile tests, gel fraction determination, 1H NMR, and 13C NMR. Thermal properties were tested by Differential Scanning Calorimetry (DSC), Dynamic Thermomechanical Analysis (DMTA) and Thermogravimetric Analysis (TGA). Degradation susceptibility to both enzymatic and hydrolytic degradation was also determined.

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Electron beam treatment of polylactide at elevated temperature in nitrogen atmosphere

Cited by 20 publications

References 34 publications

The effects of electron beam radiation on material properties and degradation of commercial PBAT/PLA blend

The effects of electron beam radiation on material properties and degradation of commercial PBAT/PLA blend

Physical Effects of Radiation Modification of Biodegradable Xylitol-Based Materials Synthesized Using a Combination of Different Monomers

E-Beam Effects on Poly(Xylitol Dicarboxylate-co-diol Dicarboxylate) Elastomers Tailored by Adjusting Monomer Chain Length

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