## Abstract The microwave‐assisted direct polycondensation of LA to synthesize PLA has been studied. Microwave irradiation strikingly accelerates the polymerization rate of LA compared to conventional heating. By use of a binary catalyst of SnCl~2~/__p__‐TsOH, PLA with a $\overline M \_{\rm w}$ of
Effect of metal triflates on direct polycondensation of lactic acid
✍ Scribed by Sachiyo Konishi; Teruhiko Yokoi; Bungo Ochiai; Takeshi Endo
- Publisher
- Springer
- Year
- 2009
- Tongue
- English
- Weight
- 180 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0170-0839
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## Abstract Poly(glutamic acid‐__co__‐lactic acid‐__co__‐glycolic acid) (PGLG), an amphiphilic biodegradable copolymer, was synthesized by simply heating a mixture of L‐glutamic acid (Glu), DL‐lactic acid, and glycolic acid with the present of stannous chloride. The unique branched architecture com
## Abstract A microwave‐assisted method of synthesizing high‐molecular‐weight PLA using SSA as green catalyst was developed. Yellowish PLA with $\overline M \_{\rm v}$ above 2.0 × 10^4^ g · mol^−1^ was obtained when the reaction was run at 260 °C within 60 min under microwave irradiation with 0.4 w