## 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
Polyethylene glycol-solvolyzed poly-(l)-lactic acids and their stereocomplexes with poly-(d)-lactic acid
✍ Scribed by Ando, Hisanori; Oshima, Maki; Nakayama, Yasuhide; Nakayama, Atsuyoshi
- Book ID
- 122496293
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 356 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0141-3910
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## 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
## Abstract Novel thermoreversible gelation behavior of aqueous solutions of ABA‐type triblock copolymers composed of the central polyethylene oxide (PEG) block and two poly(D,L‐lactic acid‐__co__‐glycolic acid) side blocks was found. Phase transition characteristics, such as critical gel concentra