Question

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Conclusions
Thermal properties of PS/TPS blends with two different
plasticizers, glycerol and Buriti oil were investigated.
The thermal characteristics of the blends clearly indicate
a phase separation of the non-miscible polymers.
The number of degradation steps in the TG
curves of the blends increased with TPS content. Generally,
blending of PS with TPS resulted less thermal
stability, although the blends with TPS plasticized by
Buriti oil appear thermally more stable than those
with glycerol. Furthermore, the thermal stability and
the mass loss of PS/TPS blends have direct relation to
the ratio of TPS in the blends.
DSC data showed that addition of TPS plasticized
with Buriti oil to the PS decreases its Tg, providing a
larger plasticization compared to the blends plasticized
by glycerol. Thus, the obtained results show that Buriti
oil, a natural raw material can be used as an environmentally-
friendly alternative to other materials, presents
a good plasticizer effect for cassava starch and its
blends with polystyrene.
Acknowledgements
The authors are grateful for financial support from CNPq,
FAP-DF and FINATEC Brazilian Agencies.
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Answer 1

结论
热性能的PS /租置计划结合两种不同的
增塑剂，甘油和布里蒂油进行了调查。
热特性的混合清楚地表明
相分离的非混聚合物。
退化的数量步骤，甘油三酯
曲线增加，共混物的TPS内容。一般来说，
混合的PS与少的TPS导致热
稳定，虽然与共混塑化的租置计划
布里蒂油价出现较稳定的热比
甘油。此外，热稳定性和
的质量损失的PS /租置计划共混有直接关系
租置计划的比例，在共混物。
数码相机的数据显示，增加的TPS塑
石油与布里蒂的PS降低其温度，提供了一个
大塑化共混物相比，增塑
由甘油。因此，所获得的结果表明，布里蒂
石油，天然原料，可作为环境
友好替代其他材料，介绍
一个良好的增塑剂影响木薯淀粉及其
与聚苯乙烯共混物。
鸣谢
作者感谢财政支持CNPq ，
FAP的- DF和FINATEC巴西通讯社。

Answer 2

上一个人用翻译软件了！！！