Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography

An analytical method was developed to quantitatively determine residual monomers, namely, lactide (LA) and ε-caprolactone (CL), in poly(lactide-co-ε-caprolactone) (PLCL) using an internal-standard method of gas chromatography (GC). PLCL and diphenyl ether (DPE) as an internal standard were initially...

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Autores principales:	Lidong Feng, Sheng Xiang, Yanlong Liu, Xinchao Bian, Gao Li, Xuesi Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	poly(lactide-co-ε-caprolactone) Residual monomer Lactide ε-caprolactone Gas chromatography Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/7a0f1e21c16e47abb8f5d1e95c4bb064
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spelling	oai:doaj.org-article:7a0f1e21c16e47abb8f5d1e95c4bb0642021-11-24T04:25:59ZDetermination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography0142-941810.1016/j.polymertesting.2020.106998https://doaj.org/article/7a0f1e21c16e47abb8f5d1e95c4bb0642021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820322273https://doaj.org/toc/0142-9418An analytical method was developed to quantitatively determine residual monomers, namely, lactide (LA) and ε-caprolactone (CL), in poly(lactide-co-ε-caprolactone) (PLCL) using an internal-standard method of gas chromatography (GC). PLCL and diphenyl ether (DPE) as an internal standard were initially dissolved in dichloromethane (DCM), and then PLCL was precipitated in cyclohexane. The residual LA and CL monomers in PLCL, as well as DPE, were extracted into cyclohexane from the polymer solution. The resulting solution was directly injected into a GC system. This method was practical for measuring the residual LA and CL contents in PLCL. The relative standard deviation (RSD) (n = 5) denoting the repeatability of this method was less than 5.6% and 4.3% for the LA and CL measurements, respectively, indicating that the method was sufficiently precise. The recovery rate of standard addition was 96.5%–101.5% and 98.4%–104.2% for the determination of LA and CL in PLCL, respectively. The RSD of the recovery of standard addition (n = 5) was not more than 2.0%, indicating that the method was sufficiently accurate.Lidong FengSheng XiangYanlong LiuXinchao BianGao LiXuesi ChenElsevierarticlepoly(lactide-co-ε-caprolactone)Residual monomerLactideε-caprolactoneGas chromatographyPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106998- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	poly(lactide-co-ε-caprolactone) Residual monomer Lactide ε-caprolactone Gas chromatography Polymers and polymer manufacture TP1080-1185
spellingShingle	poly(lactide-co-ε-caprolactone) Residual monomer Lactide ε-caprolactone Gas chromatography Polymers and polymer manufacture TP1080-1185 Lidong Feng Sheng Xiang Yanlong Liu Xinchao Bian Gao Li Xuesi Chen Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
description	An analytical method was developed to quantitatively determine residual monomers, namely, lactide (LA) and ε-caprolactone (CL), in poly(lactide-co-ε-caprolactone) (PLCL) using an internal-standard method of gas chromatography (GC). PLCL and diphenyl ether (DPE) as an internal standard were initially dissolved in dichloromethane (DCM), and then PLCL was precipitated in cyclohexane. The residual LA and CL monomers in PLCL, as well as DPE, were extracted into cyclohexane from the polymer solution. The resulting solution was directly injected into a GC system. This method was practical for measuring the residual LA and CL contents in PLCL. The relative standard deviation (RSD) (n = 5) denoting the repeatability of this method was less than 5.6% and 4.3% for the LA and CL measurements, respectively, indicating that the method was sufficiently precise. The recovery rate of standard addition was 96.5%–101.5% and 98.4%–104.2% for the determination of LA and CL in PLCL, respectively. The RSD of the recovery of standard addition (n = 5) was not more than 2.0%, indicating that the method was sufficiently accurate.
format	article
author	Lidong Feng Sheng Xiang Yanlong Liu Xinchao Bian Gao Li Xuesi Chen
author_facet	Lidong Feng Sheng Xiang Yanlong Liu Xinchao Bian Gao Li Xuesi Chen
author_sort	Lidong Feng
title	Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
title_short	Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
title_full	Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
title_fullStr	Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
title_full_unstemmed	Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
title_sort	determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7a0f1e21c16e47abb8f5d1e95c4bb064
work_keys_str_mv	AT lidongfeng determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography AT shengxiang determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography AT yanlongliu determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography AT xinchaobian determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography AT gaoli determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography AT xuesichen determinationofresidualmonomersinpolylactidecoecaprolactoneusinggaschromatography
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Determination of residual monomers in poly(lactide-co-ε-caprolactone) using gas chromatography

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