Fully Biobased Aliphatic Anionic Oligoesters: Synthesis and Properties

Table 3

Thermal properties of biobased oligoesters.

Sample	Td(5%) (°C)^a	RW (%)^b	Tg (°C)^c	Tm (°C)^d	∆Hm (J.g^-1)^e	∆Hr (J.g^-1)^f
PBSu100Ss0	277	2.7	−38	114	111	68
PBSu80Ss20	268	16.3	−33	99	45	—
PBSu70Ss30	263	17.8	−29	—	—	—
PBSu60Ss40	260	24.2	−24	—	—	—
cPBSu70Ss30	—	—	53	—	—	—
PBC18100Ss0	360	1.15	−68	18	51	42
PBC1890Ss10	312	5	−66	17	37	31
PBC1880Ss20	298	10.8	−64	8	15	22
PBC1870Ss30	289	10	−63	6	9	15
PBDA100Ss0	384	0.5	−56	—	—	—
PBDA90Ss10	353	2.1	−55	—	—	—
PBDA80Ss20	335	3.3	−54	—	—	—
PBDA70Ss30	288	6.9	−55	—	—	—
PBISu100Ss0	308	4	−7	—	—	—
PBISu90Ss10	286	13	−2	—	—	—
PBISu80Ss20	269	16	9	—	—	—
PBISu70Ss30	227	24	12	—	—	—

^aDegradation temperature at which a 5% weight loss was observed in TGA. ^bRemaining weight at 500°C. ^cGlass transition temperature taken as the inflection point of the DSC traces. ^dMelting temperatures were registered by DSC. ^eMelting enthalpies were registered by DSC. ^fCrystallization enthalpies were registered by DSC.