biodegradation of poly(butylene succinate) powder in a controlled compost at 58 °c evaluated by naturally-occurring carbon 14 amounts in evolved co2 based on the iso 14855-2 method生物降解的聚丁烯琥珀酸)粉在58控制堆肥由自然产生的碳14°c评估在发展二氧化碳基于iso 14855 - 2的方法.pdf

Int. J. Mol. Sci. 2009, 10, 4267-4283; doi:10.3390/ijm OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 /journal/ijms Article Biodegradation of Poly(butylene succinate) Powder in a Controlled Compost at 58 C Evaluated by Naturally-Occurring Carbon 14 Amounts in Evolved CO2 Based on the ISO 14855-2 Method Masao Kunioka *, Fumi Ninomiya and Masahiro Funabashi National Institute of Advanced Industrial Science and Technology (AIST), Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan; E-Mails: f.ninomiya@aist.go.jp (F.N.); m.funabashi@aist.go.jp (M.F.) * Author to whom correspondence should be addressed; E-Mail: m.kunioka@aist.go.jp; Tel.: +81-29-861-4584; Fax: +81-29-861-4589. Received: 15 August 2009; in revised form: 10 September 2009 / Accepted: 27 September 2009 / Published: 30 September 2009 Abstract: The biodegradabilities of poly(butylene succinate) (PBS) powders in a controlled compost at 58 °C have been studied using a Microbial Oxidative Degradation Analyzer (MODA) based on the ISO 14855-2 method, entitled “Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—Method by analysis of evolved carbon dioxide—Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test”. The evolved CO2 was trapped by an additional aqueous Ba(OH) solution. The tra