Synthesis of Functional Polyester Based on Polylactic Acid and Its Effect on PC12 Cells after Coupling with Small Peptides

Table 1

Polymerization of L-LA with BMD initiated by dodecanol and catalyzed with stannous octoate.

L-LA/BMD	L-/BMD	(g/mol)	(g/mol)	/	(°C)	(°C)	Δ (J/g)
100/0	100/0	—	—	—	60.8	177.2	93.6
98/2	98.0/2.0	1.0 × 10^5	1.6 × 10^5	1.03	55.9	162.4	55.6
95/5	95.4/4.6	1.0 × 10^5	1.1 × 10^5	1.12	53.7	154.2	54.8
92/8	93.6/6.4	1.0 × 10^5	1.0 × 10^5	1.19	53.4	147.4	9.4

Polymerization of BMD with L-LA at 100°C for 48 h.
Obtained from ¹H NMR analysis.
Number-average molar mass () and polydispersity index (/) obtained from gel permeation chromatography in THF using polystyrene standards.
The thermal properties were determined using DSC at 10°C/min heating rate under N₂.