2013 Fiscal Year Final Research Report
Evaluation of Oxidation for Biodegradable Polymers by the Measurement of Chemiluminescence
| Project/Area Number |
23560373
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Waseda University |
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Principal Investigator |
HIRAI Naoshi 早稲田大学, 理工学術院, 講師 (30329122)
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| Co-Investigator(Kenkyū-buntansha) |
OHKI Yoshimichi 早稲田大学, 理工学術院, 教授 (70103611)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 化学発光 / 生分解性高分子 / 酸化防止剤 / 難燃剤 / 酸化誘導期間 / 金属水酸化物 / 放射線 / 熱劣化 |
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| Research Abstract |
Since the chemiluminescence (CL) behavior in biodegradable polymers, which have carbonyl group in its structure, indicates a similar behavior of polyethylene (PE), it is thought that the carbonyl group consisted in the polymer structure exhibits no CL. While a silane coupling agent or a thiobis-based antioxidant, which is added in low density PE, exhibits no proper CL, a sulfur-based antioxidant, a halogen-based antioxidant, a metal hydroxide, an antirad, or an ion-trapping agent, which is added in ethylene propylene rubber (EPR), exhibits CL. The CL behavior in EPR is different to the one of LDPE or biodegradable polymers because of flame retarder added in EPR. Therefore, CL measurement is a good tool to evaluate the resistivity against oxidation of polymers.
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