Stereocomplex formation of a poly(D-lactide)/poly(L-lactide) blend on a technical scale

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-14 DOI:10.1515/ipp-2022-4296

Boris Marx, Lars Bostan, A. Herrmann, E. Schmidt, M. M. Murshed

引用次数: 1

Abstract

Abstract Poly(D-lactide) (PDLA) and poly(L-lactide) (PLLA), both available on the market, are blended on a technical scale. Using a special process control, the two materials are blended in a twin-screw extruder at a mass throughput rate of 2 kg/h, resulting in a stereocomplex Poly(-lactide) (PLA) blend. Thermal analysis indicates only one melting point at 235 °C. Both the Raman spectra and X-ray powder diffraction patterns show characteristic features for the stereocomplex PLA. With the available amount of this blend PLA fibers with technical strengths can be developed by melt spinning. As such, the application of the biopolymer PLA can be expanded, leading to substitute the conventional plastics for conserving both the resources and the environment.

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聚D-丙交酯/聚L-丙交酯共混物的立体复合物在技术规模上的形成

摘要市场上可买到的聚乳酸（PDLA）和聚乳酸（PLLA）都是在技术规模上混合的。使用特殊的工艺控制，两种材料在双螺杆挤出机中以2的质量通过率混合 kg/h，得到立体复合物聚（-丙交酯）（PLA）共混物。热分析表明只有一个熔点在235 °C。拉曼光谱和X射线粉末衍射图都显示了立体配合物PLA的特征。有了这种共混物的可用量，可以通过熔融纺丝开发出具有技术强度的PLA纤维。因此，生物聚合物PLA的应用可以扩大，从而取代传统塑料来保护资源和环境。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.