## Abstract Directly starting from L‐lactic acid (LA) and L‐aspartic acid (Asp), biodegradable material poly(lactic acid‐__co__‐aspartic acid) [P(LA‐__co__‐Asp)] was synthesized via melt polycondensation. The synthetic conditions, including type and dosage of catalyst, temperature, and time of copo
Synthesis of poly(lactic acid)-poly(phenyl phosphate) via direct polycondensation and its characterization
✍ Scribed by Zhao-Yang Wang; Xiong-Wu Li; Jing-Ning Li; Guo-Ming Li; Jing-Qi Tao
- Publisher
- Springer
- Year
- 2008
- Tongue
- English
- Weight
- 177 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1022-9760
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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 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