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

Table 1

Composition of PPBSu copolymers determined from ¹H NMR spectra, intrinsic viscosities and molecular weight values.

Polyester	PSu/BSu	[η]	Mn	𝑀𝑤	𝑀𝑤/Mn
	(mol%)*	(dL/g)	(g/mol)	(g/mol)
PPBSu 100/0	100/0	0.63	18630	42850	2.30
PPBSu 90/10	88.6/11.4	0.61	17800	39160	2.20
PPBSu 80/20	84.6/15.1	0.73	21340	44800	2.10
PPBSu 70/30	70.7/29.1	0.73	21880	47040	2.15
PPBSu 60/40	60.6/39.4	0.66	19360	42590	2.20
PPBSu 50/50	53/47	0.65	18900	42530	2.25

*Composition determined by ¹H NMR.