Table 3.

The final PLA concentration and obtained viscosity of the solutions after plasma treatment and Ar-bubbling with various exposure times (treatment condition: 0.5 lmin⁻¹, 2 kV, 6% w/v).

PLA concentration (w/v %)	Tplasma (min)	Tbubbling (min)	Plasma treatment	Ar-bubbling
			Viscosity (cP)	Viscosity (cP)
6	0	0	87.72 ± 5.46	87.72 ± 5.46
6.6	1	2.5	98.04 ± 10.86	90.00 ± 6.48
6.9	3	5	120.80 ± 12.33	103.88 ± 8.34
7.1	5	9	146.16 ± 7.01	129.52 ± 4.61
7.4	7	12	183.58 ± 11.01	166.23 ± 7.44
7.6	9	15.5	241.52 ± 7.31	204.17 ± 8.52