Nanoencapsulation of Nimodipine in Novel Biocompatible Poly(propylene-co-butylene succinate) Aliphatic Copolyesters for Sustained Release

Table 2

Transition temperatures and crystallinity of PPBSu copolymers crystallized from the melt during storage at room temperature for two months.

Sample	𝑇𝑚 (^∘C)	𝑇𝑔 (^∘C)	𝑋𝑐, % (X-ray)
PPBSu 100/0	49	−31	25.6
PPBSu 90/10	42	−32	22.1
PPBSu 80/20	amorphous	−33	0.0
PPBSu 70/30	amorphous	−35	0.0
PPBSu 60/40	47	−36	13.4
PPBSu 50/50	58	−37	19.6