An electron spin resonance study on γ-irradiated poly(l-lactic acid) and poly(d,l-lactic acid)
✍ Scribed by A. Babanalbandi; D.J.T. Hill; J.H. O'Donnell; P.J. Pomery; Andrew Whittaker
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 751 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0141-3910
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This article investigated the effects of electron beam (EB) irradiation on poly(D,L-lactic acid)-b-poly-(ethylene glycol) copolymer (PLEG) and poly(L-lactic acid) (PLLA). The dominant effect of EB irradiation on both PLEG and PLLA was chain scission. With increasing dose, recombination reactions or
## Abstract Stereoblock poly(lactic acid) (sb‐PLA) is incorporated into a 1:1 polymer blend system of poly(L‐lactic acid) (PLLA) and poly(D‐lactic acid) (PDLA) that has a high molecular weight to study its addition effect on the stereocomplex (sc) formation of PLLA and PDLA. The ternary polymer ble
## Abstract **Summary:** Stereoblock poly(lactic acid) consisting of D‐ and L‐lactate stereosequences can be successfully synthesized by solid‐state polycondensation of a 1:1 mixture of poly(L‐lactic acid) and poly(D‐lactic acid). In the first step, melt‐polycondensation of L‐ and D‐lactic acids is