Figure 2: 1H-NMR (CDCl 3 at 300 Hz) d 5.2 (m, (OCH(CH3) C(O)OCH2C(O) n-(CH2CH2O)m), 4.8 (m, (OCH(CH3)C(O) OCH2C(O)n-(CH2CH2O) m), 3.7 (s, (OCH(CH3)C(O)OCH2C(O) n-(CH2CH2O)m), 1.6 (d, (OCH(CH3)C(O)OCH2C(O)) n-(CH2CH2O)m.