Preparation and properties of poly(valerolactone)

In vitro degradation of poly(lactide/δ-valerolactone) copolymers

“…The 3-caprolactone ( 3-CL) unit has an identical structure to d-VAL but has one more straight methylene group sandwiched between the ester groups of the polymer chain. Therefore, provides higher flexibility with respect to d-VAL [35,36] and their lactide copolymers have lower glass transition temperatures, bringing about relevant differences in their mechanical behaviour. In accordance with the literature [33], PLVLs showed an increase in their stress related properties (secant modulus, yield strength and ultimate tensile stress) over the PLCLs, which is translated into an important improvement in their stiffness and strength.…”

Miscibility, morphology and tensile properties of vinyl chloride polymer and poly(?-caprolactone) blends

“…It has been concluded that the miscibility between these two polymers is due to a specific interaction between the carbonyl groups of PCL and the α‐hydrogen of PVC 5. 13 In addition to PCL, PVC was also found to be miscible with other polyesters including poly(valerolactone),14, 15 poly(1,4‐butylene adipate)16 and poly(hexamethylene sebacate) 17. The miscibility in all these PVC/polyester blends originates from the specific interaction mentioned above for PVC/PCL blends.…”

Purification and Characterization of Poly(ethylene succinate) Hydrolase from the Mesophilic Fungus Aspergillus clavatus NKCM1003

“…[10] Poly(d-valerolactone) (PVL) was chemically synthesized. [11] To purify the polymers, they were dissolved in dimethylene chloride or chloroform and then reprecipitated by the addition of methanol. Melt-crystallized films of these polymers were prepared under the same conditions as described previously.…”