Electron-beam irradiation on poly(propylene carbonate) in the presence of polyfunctional monomers

Qin, Yu; Wei, Qing; Wang, Xian Hong; Sun, Jia; Zhao, Xiao Jiang; Wang, Fo Song

doi:10.1016/j.polymdegradstab.2007.06.007

Cited by 23 publications

(14 citation statements)

References 35 publications

(12 reference statements)

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“…Many papers have been published on radiation modification of biodegradable polymers 8–14. For example, Narkis et al 8 studied the structure and physical properties of γ‐irradiated PCL as a function of irradiation dose.…”

Section: Introductionmentioning

confidence: 99%

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Effect of γ‐radiation on the thermal and mechanical properties of a commercial poly(butylene adipate‐co‐terephthalate)

Han

Bian

Liu

et al. 2009

Polymer International

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BACKGROUND: Poly(butylene adipate-co-terephthalate) (PBAT) has attracted wide interest as a biodegradable polymer. However, its use is restricted in certain applications due to its low melting point. RESULTS:PBAT was treated using γ -radiation. The radiation features were analyzed using Soxhlet extraction, and the ratio of chain scission and crosslinking and gelation dose were determined using the classical Charlesby-Pinner equation. The results showed that PBAT is a radiation-crosslinkable polymer. The degree of crosslinking increased with increasing radiation dose; the relation between sol fraction and dose followed the Charlesby-Pinner equation. Differential scanning calorimetry analyses showed that the melting temperature (T m ) and the heat of fusion ( H m ) of PBAT exhibited almost no change in the first scan. The second scan, however, showed a decrease in T m and H m . The glass transition temperature of irradiated PBAT increased with increasing radiation dose. The weight loss of control and irradiated PBAT resulting from thermal degradation was a one-step process. Moreover, the tensile strength and elongation at break decreased with an increase in radiation dose. However, the Young's modulus and stress at yield were not greatly affected by γ -radiation. CONCLUSION: PBAT can be crosslinked using γ -radiation. The crosslinking efficiency is relatively low. The thermal and mechanical properties of PBAT are affected by γ -radiation.

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Section: Introductionmentioning

confidence: 99%

“…Crosslinking of PCL was also achieved by electron beam irradiation in the presence of polyfunctional monomers (PFMs) 10. Moreover, poly(butylene succinate),11 polylactide12, 13 and poly(propylene carbonate)14 were crosslinked using radiation in the presence of a PFM to improve their heat stability.…”

Section: Introductionmentioning

confidence: 99%

Effect of γ‐radiation on the thermal and mechanical properties of a commercial poly(butylene adipate‐co‐terephthalate)

Han

Bian

Liu

et al. 2009

Polymer International

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“…Therefore, triallyl isocyanurate (TAIC), which is a multifunctional crosslinker containing three reactive double bonds, was added to the SPEEK/PVDF membrane in order to increase the degree of crosslinking. The preliminary results demonstrated that even though a small amount of TAIC crosslinker was added to the SPEEK/PVDF membrane, the degree of crosslinking was significantly increased due to the high crosslinking ability of TAIC under EB‐irradiation conditions 34–36.…”

Section: Introductionmentioning

confidence: 99%

EB‐crosslinked Polymer Electrolyte Membranes Based on Highly Sulfonated Poly(ether ether ketone) and Poly(vinylidene fluoride)/Triallyl Isocyanurate

et al. 2015

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In this study, crosslinked polymer electrolyte membranes for polymer electrolyte membrane fuel cell (PEMFC) applications are prepared using electron beam irradiation with a mixture of sulfonated poly(ether ether ketone) (SPEEK), poly(vinylidene fluoride) (PVDF), and triallyl isocyanurate (TAIC) at a dose of 300 kGy. The gel‐fraction of the irradiated SPEEK/PVDF/TAIC (95/4.5/0.5) membrane is 87% while the unirradiated membrane completely dissolves in DMAc solvent. In addition, the water uptake of the irradiated membrane is 221% at 70 °C while that of the unirradiated membrane completely dissolves in water at above 70 °C. The ion exchange capacity and proton conductivity of the crosslinked membrane are 1.57 meq g−1, and 4.0 × 10−2 S cm−1 (at 80 °C and RH 90%), respectively. Furthermore, a morphology study of the membranes is conducted using differential scanning calorimetry and X‐ray diffractometry. The cell performance study with the crosslinked membrane demonstrates that the maximum power density is 518 mW cm−2 at 1036 mA cm−2 and the maximum current density at applied voltage of 0.4 V is 1190 mA cm−2.

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“…These drawbacks have limited the extensive application of PPC being used as an industrial material, and many attempts have been made to make PPC a more widely used material. End-capping with MAH [12] or cross-linking [13] are usually effective methods to improve the thermal stability of PPC under higher temperatures. What is more, Gao L [14] made an attempt to synthesize pseudo-interpenetrating poly(propylene carbonate) Abstract Different amounts of core-shell methyl methacrylate-butadiene-styrene (MBS) impact modifiers were incorporated into biodegradable poly(propylene carbonate) (PPC) in a batch mixer, aiming at improving the mechanical properties and raising the glass transition temperature (T g ) of PPC.…”

Section: Introductionmentioning

confidence: 99%

Thermal, rheological and mechanical properties of poly(propylene carbonate)/methyl methacrylate–butadiene–styrene blends

Zhang

et al. 2015

Iran Polym J

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Electron-beam irradiation on poly(propylene carbonate) in the presence of polyfunctional monomers

Cited by 23 publications

References 35 publications

Effect of γ‐radiation on the thermal and mechanical properties of a commercial poly(butylene adipate‐co‐terephthalate)

Effect of γ‐radiation on the thermal and mechanical properties of a commercial poly(butylene adipate‐co‐terephthalate)

EB‐crosslinked Polymer Electrolyte Membranes Based on Highly Sulfonated Poly(ether ether ketone) and Poly(vinylidene fluoride)/Triallyl Isocyanurate

Thermal, rheological and mechanical properties of poly(propylene carbonate)/methyl methacrylate–butadiene–styrene blends

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