. 2011 Feb 25;6:453–461. doi: 10.2147/IJN.S17057

Table 1.

Characterization of CS-PCL

Sample	MFR^a	Yield (%)^b	Mw (×10⁴)^c	PDI^c	CL_n^d
CS-PCL	12	79	4.86	3.43	2.7

Notes:

Moral feed ratio of ɛ-CL to glucosamine units;

Yield (%) = [(W_CS-PCL)/(W_CL + W_CS)] × 100%;

Measured by GPC; polystyrene samples were used as standard;

Average number of ɛ-CL units per glucosamine unit in CS, CL_n = A_[(a)/2]/A_{[(3, 4, 5, 6, 6′)/5]}, calculated from ¹H NMR.

Abbreviations: ¹H NMR, proton nuclear magnetic resonance; CL, caprolactone; CS, chitosan; CS-PCL, cationic chitosan-graft-poly (ɛ-caprolactone); GPC, gel permeation chromatography; MFR, moral feed ratio; Mw, molecular weight; PDI, polydispersity index.