FN Archimer Export Format
PT J
TI Natural Degradation and Biodegradation of Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate) in Liquid and Solid Marine Environments
BT 
AF DEROINE, Morgan
   CESAR, Guy
   LE DUIGOU, Antoine
   DAVIES, Peter
   BRUZAUD, Stephane
AS 1:1,2,3;2:2;3:1;4:3;5:1;
FF 1:;2:;3:;4:PDG-REM-RDT-LCSM;5:;
C1 Univ Bretagne Sud, EA 4250, LIMATB, F-56100 Lorient, France.
   Univ Bretagne Sud, SERPBIO, F-56321 Lorient, France.
   IFREMER, Marine Struct Grp, Ctr Bretagne, F-29280 Plouzane, France.
C2 UBS, FRANCE
   UBS, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-RDT-LCSM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.969
TC 61
UR https://archimer.ifremer.fr/doc/00296/40735/42020.pdf
LA English
DT Article
DE ;PHBV;Natural ageing;Degradation;Biodegradation;Seawater
AB In this study, natural degradation and biodegradation of poly(3-hydroxybuyrate-co-3-hydroxyvalerate) (PHBV) films were followed in different marine environments. First of all, ageing of PHBV films was investigated in natural seawater for 180 days and degradation was followed by means of weight loss measurements, scanning electron microscopy (SEM), differential scanning calorimetry and steric exclusion chromatography. In a second part, biodegradation tests were performed on PHBV powder, by following carbon dioxide (CO2) release(,) to highlight the PHBV bioassimilation of marine microorganisms. Three different marine environments were considered for biodegradation tests: a solid inoculum with foreshore sand, a solid-liquid inoculum with sand and seawater and a liquid inoculum with seawater. In the latter, a biofilm was added to study the influence of microorganisms on biodegradation kinetics. The films aged under natural conditions show a large loss of weight after 180 days in immersion, around 36 %, confirmed by SEM pictures which show an increase of the surface erosion and a decrease of the sample thickness. Microorganisms' attack occurred as suggested by CO2 release during biodegradation tests, whatever the environment studied.
PY 2015
PD DEC
SO Journal Of Polymers And The Environment
SN 1566-2543
PU Springer/plenum Publishers
VL 23
IS 4
UT 000363984000008
BP 493
EP 505
DI 10.1007/s10924-015-0736-5
ID 40735
ER

EF