Degradation of polyesteramides prepared by the anionic polymerisation of -caprolactam in the presence of poly( -caprolactone)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F05%3A00013633" target="_blank" >RIV/60461373:22310/05:00013633 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Degradation of polyesteramides prepared by the anionic polymerisation of -caprolactam in the presence of poly( -caprolactone)
Original language description
Poly[( -caprolactam)-co-( -caprolactone)] was prepared by the anionic polymerisation of -caprolactam in the presence of poly( -caprolactone) initiated by -caprolactam magnesium bromide. Copolymers with 10-25% -caprolactone structure units were subjectedto degradation. After 8-weeks abiotic hydrolysis at 60 °C the molar mass of the copolymer was significantly reduced as seen from viscosity measurements. IR spectroscopy was employed to clarify the mechanism of hydrolysis. Only small changes in molar masswere observed after composting and fungal treatment. Therefore, the effect of degradation temperature was crucial. The thermal properties of polyesteramides were studied by DSC, which showed the shift of melting endotherm and enthalpy of fusion to higher values of degraded samples compared to original one. This indicated an increase in crystalline phase content caused by reorganization of amorphous phase. Physical degradation of films was observed using SEM. Film-surface changes were ap
Czech name
Degradace polyesteramidů připravenýchd anionickou polymerizací -kaprolaktamu za přítomnosti poly( -kaprolaktonu)
Czech description
Degradace polyesteramidů připravenýchd anionickou polymerizací -kaprolaktamu za přítomnosti poly( -kaprolaktonu)

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
<a href="/en/project/GA203%2F03%2F0508" target="_blank" >GA203/03/0508: Copolyesters and polyesteramides with enhanced sensitivity to biodegradation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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