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Preparation of Bioplastic Copolymer as Surface Modifier on NR Latex Particles

机译：在NR乳胶颗粒上的生物塑料共聚物的制备

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Natural rubber particles were separated from its latex and dispersed in CTAB aqueous solution pH8. The particles were used as substrates for admicellar polymerization of polycaprolactone-co-polylactide (PCL-co-PLA). TEM revealed the core-shell structure of PCL-co-PLA shell covered NR core particles. FTIR spectra of the extracted shell layer showed characteristic peaks of PCL and PLA. By fixing the equal amount of co-monomers (50:50 mM caprolactone:lactide), initiator content was varied from 0.5 to 2.0 mM per 100 mM co-monomers. The optical microscope showed good covering of the copolymer shell on the NR particles for all initiator content. FTIR reveals insignificant change in absorption intensity with the initiator content. Thermal properties obtained from TGA test demonstrated the well-superposed thermograms of all samples. Their decomposition temperature at onset was about 349 °C. Surface modification is necessary for improving compatibility.
机译：将天然橡胶颗粒与其胶乳分离并分散在CTAB水溶液pH8中。将颗粒用作聚己内酯 - 共聚酰基（PCL-Co-PLA）的偏食聚合的底物。 TEM揭示了PCL-Co-PLA壳覆盖了NR核心颗粒的核心壳结构。提取的壳层的FTIR光谱显示出PCL和PLA的特征峰。通过固定相等量的共聚单体（50:50mm Caprolacterone：丙交酯），引发剂含量从0.5至2.0mM / 100mM共聚单体变化。光学显微镜显示出所有引发剂含量的NR颗粒上的共聚物壳良好的覆盖物。 FTIR揭示了引发剂含量的吸收强度的微不足道。从TGA测试获得的热性质证明了所有样品的叠加热量点。它们处于发病的分解温度约为349℃。表面改性是提高兼容性的必要条件。

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