. 2011 Nov 22;6:2981–2995. doi: 10.2147/IJN.S26568

Table 1.

Theoretical and calculated compositions, intrinsic viscosities, and molecular weights of prepared polymers

Sample	%wt	%mol	%mol ¹H NMR	%mol ¹³C NMR^*	[η] (dL/g)	Average M_n (g/mol)	Average M_w (g/mol)	M_w/M_n
PCL	0/100	0/100	0/100	0/100	0.53	15,300	47,700	3.12
PPAd/PCL 10/90	10/90	6.37/93.63	6.12/93.88	6.74/93.26	0.42	19,300	50,500	2.61
PPAd/PCL 20/80	20/80	13.28/86.72	12.97/87.03	13.36/86.64	0.53	12,300	32,800	2.67
PPAd/PCL 30/70	30/70	20.80/79.20	23.31/76.69	21.27/78.73	0.40	13,200	34,300	2.60
PPAd/PCL 55/45	55/45	42.82/57.18	43.13/56.87	44.15/55.85	0.41	16,900	36,100	2.13
PPAd/PCL 65/35	65/35	53.24/46.76	55.45/44.55	55.33/44.67	0.42	19,400	38,600	1.99
PPAd/PCL 85/15	85/15	77.62/22.38	77.07/22.93	79.98/20.02	0.43	11,000	24,900	2.26
PPAd	100/0	100/0	100/0	100/0	0.57	13,700	28,900	2.10

Note: Estimated from diol carbons a from polycaprolactone, bonded to the ester oxygen.

Abbreviations: ¹H NMR, hydrogen-1 nuclear magnetic resonance; ¹³C NMR, carbon-13 nuclear magnetic resonance; %mol, percentage concentration; %wt, weight percent; M_n, number average molecular weight; M_w, weight average molecular weight; PCL, poly(ɛ-caprolactone); PPAd, poly(propylene adipate).