Table 1.

Thermal events and properties of random and aligned scaffolds

Scaffold	Tg (°C)	Tc (°C)	∆Hc (J/g)	Tm (°C)	∆Hm (J/g)	Xc (%)a
PLLA raw	61.4	–	–	152.5	35	37.6
PLLA random	61.6	82.06	14.6	153.4	35.4	22.3
PLLA r = 1175 rpm	61.4	86.5	11.2	154.4	34.4	24.9

Glass transition (Tg), crystallization (Tc), and melting (Tm) temperatures, crystallization (ΔHc), and melting (ΔHm) heats, and crystallinity degree (Xc) for the raw PLLA and PLLA electrospun scaffolds

^aDegree of crystallinity values were calculated as Xc = ((ΔHm−ΔHc) / ΔHm100%) x 100, where ΔHm100% is the crystallization heat for pure high molecular weight PLLA 100% crystalline considered as 93 J/g (Fischer et al. 1973)