%0 Journal Article %T Shear and Extensional Rheology of Linear and Branched Polybutylene Succinate Blends %+ Polymères Composites et Hybrides (PCH - IMT Mines Alès) %+ Durabilité des éco-Matériaux et Structures (DMS) %+ Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE) %+ Nestlé Institute of Health Sciences SA [Lausanne, Switzerland] %+ Centre de Mise en Forme des Matériaux (CEMEF) %A Bourg, Violette %A Valette, Rudy %A Le Moigne, Nicolas %A Ienny, Patrick %A Guillard, Valérie, V. %A Bergeret, Anne %Z Ceisa Packaging and the French Environment and Energy Management Agency-ADEME (n° TEZ11-26). %< avec comité de lecture %@ 2073-4360 %J Polymers %I MDPI %V 13 %N 4 %P 652 %8 2021-02 %D 2021 %R 10.3390/polym13040652 %K molecular architecture %K long-chain branching %K polybutylene succinate %K biodegradable %K size-exclusion chromatography %K shear rheology %K extensional rheology %Z Engineering Sciences [physics]Journal articles %X The molecular architecture and rheological behavior of linear and branched polybutylene succinate blends have been investigated using size-exclusion chromatography, small-amplitude oscillatory shear and extensional rheometry, in view of their processing using cast and blown extrusion. Dynamic viscoelastic properties indicate that a higher branched polybutylene succinate amount in the blend increases the relaxation time due to an increased long-chain branching degree. Branched polybutylene succinate exhibits pronounced strain hardening under uniaxial elongation, which is known to improve processability. Under extensional flow, the 50/50 wt % blend exhibits the same behavior as linear polybutylene succinate. %G English %2 https://imt-mines-ales.hal.science/hal-03154909/document %2 https://imt-mines-ales.hal.science/hal-03154909/file/polymers-13-00652-v2.pdf %L hal-03154909 %U https://imt-mines-ales.hal.science/hal-03154909 %~ CIRAD %~ INSTITUT-TELECOM %~ ENSMP %~ CNRS %~ EM-ALES %~ IATE %~ LMGC %~ ENSMP_CEMEF %~ PARISTECH %~ PSL %~ AGREENIUM %~ CFL %~ MIPS %~ BA %~ ENSMP_DEP_MM %~ UNIV-MONTPELLIER %~ ENSMP_DR %~ MONTPELLIER-SUPAGRO %~ INSTITUTS-TELECOM %~ ENSMP_CEMEF_CMP %~ ENSMP_CEMEF_CFL %~ INRAE %~ TEST-HALCNRS %~ INRAEOCCITANIEMONTPELLIER %~ ENSMP-PSL %~ UM-2015-2021 %~ TEST3-HALCNRS %~ INSTITUT-AGRO