Development of a solid-phase extraction method for simultaneous extraction of adipic acid, succinic acid and 1,4-butanediol formed during hydrolysis of poly(butylene adipate) and poly(butylene succinate).
A solid-phase extraction (SPE) method was developed for the simultaneous extraction of dicarboxylic acids and diols formed during hydrolysis of poly(butylene succinate), PBS, and poly(butylene adipate), PBA. Four commercial non-polar SPE columns, three silica based: C8, C18, C18 (EC), and one resin based: ENV+, were tested for the extraction of succinic acid, adipic acid and 1,4-butanediol, the expected final hydrolysis products of PBS and PBA. ENV+ resin was chosen as a solid-phase, because it displayed the best extraction efficiency for 1,4-butanediol and succinic acid. Linear range for the extracted analytes was 1-500 ng/microl for adipic acid and 2-500 ng/microl for 1,4-butanediol and succinic acid. Detection and quantification limits for the analytes were between 1-2 and 2-7 ng/microl, respectively, and relative standard deviations were between 3 and 7%. Good repeatability and low detection limits made the developed SPE method and subsequent gas chromatography-mass spectrometry (GC-MS) analysis a sensitive tool for identification and quantification of hydrolysis products at early stages of degradation.
Lindström
Annika
A
Department of Fiber and Polymer Technology, Royal Institute of Technology S-100 44 Stockholm, Sweden.
Albertsson
Ann-Christine
AC
Hakkarainen
Minna
M
D000272:Adipates / Q000032:analysis*; D002072:Butylene Glycols / Q000032:analysis* / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D006868:Hydrolysis; D008970:Molecular Weight; D011108:Polymers / Q000302:isolation & purification*; D012680:Sensitivity and Specificity; D019802:Succinic Acid / Q000032:analysis*
D000272:Adipates; D002072:Butylene Glycols; D011108:Polymers; C089797:bionole; C009204:butylene glycol adipic acid polyester; C029900:adipic acid; C039681:1,4-butanediol; D019802:Succinic Acid