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三元聚乳酸/聚甲基丙烯酸甲酯/聚倍半硅氧烷共混物的相结构与性能

Phase Structure and Properties of Ternary Polylactide/Poly(methyl methacrylate)/Polysilsesquioxane Blends.

作者信息

Kowalewska Anna, Herc Agata S, Bojda Joanna, Nowacka Maria, Svyntkivska Mariia, Piorkowska Ewa, Kaczorowski Witold, Szymański Witold

机构信息

Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.

Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-924 Lodz, Poland.

出版信息

Polymers (Basel). 2021 Mar 26;13(7):1033. doi: 10.3390/polym13071033.

DOI:10.3390/polym13071033
PMID:33810345
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8036706/
Abstract

Ternary blends of polylactide (PLA, 90 wt.%) and poly(methyl methacrylate) (PMMA, 10 wt.%) with functionalized polysilsesquioxanes (LPSQ-R) were obtained by solution blending. R groups in LPSQ containing hydroxyethyl (LPSQ-OH), methylglycolic (LPSQ-COOMe) and pentafluorophenyl (LPSQ-F5) moieties of different chemical properties were designed to modify PLA blends with PMMA. The effect of the type of LPSQ-R and their content, 1-3 wt.%, on the structure of the blends was studied with scanning electron microscopy (SEM) combined with energy dispersive spectroscopy (SEM-EDS), dynamic mechanical thermal analysis (DMTA) and Raman spectroscopy. Differential scanning calorimetry (DSC) and tensile tests also showed various effects of LPSQ-R on the thermal and mechanical properties of the blends. Depth-sensing indentation was used to resolve spatially the micro- and nano-scale mechanical properties (hardness and elastic behaviour) of the blends. The results showed clearly that LPSQ-R modulate the structure and properties of the blends.

摘要

通过溶液共混法制备了聚乳酸（PLA，90重量%）、聚甲基丙烯酸甲酯（PMMA，10重量%）与功能化聚倍半硅氧烷（LPSQ-R）的三元共混物。设计了含不同化学性质的羟乙基（LPSQ-OH）、甲基乙醇酸（LPSQ-COOMe）和五氟苯基（LPSQ-F5）部分的LPSQ中的R基团，以改性PLA与PMMA的共混物。采用扫描电子显微镜（SEM）结合能谱分析（SEM-EDS）、动态热机械分析（DMTA）和拉曼光谱研究了LPSQ-R的类型及其含量（1-3重量%）对共混物结构的影响。差示扫描量热法（DSC）和拉伸试验也表明LPSQ-R对共混物的热性能和力学性能有不同影响。采用深度传感压痕法在空间上解析了共混物的微观和纳米尺度力学性能（硬度和弹性行为）。结果清楚地表明，LPSQ-R调节了共混物的结构和性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/29f78ce1c301/polymers-13-01033-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/137c702c2b78/polymers-13-01033-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/4e816163264a/polymers-13-01033-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/f6b4559f6aba/polymers-13-01033-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/cbcbd798c7c4/polymers-13-01033-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/87058305a57f/polymers-13-01033-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/3f672daef157/polymers-13-01033-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/14fb43aec911/polymers-13-01033-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/b09b0f2fb9f9/polymers-13-01033-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/5903f2e6738c/polymers-13-01033-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/6ade0192fd37/polymers-13-01033-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/338481e332ce/polymers-13-01033-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/112e837c1c28/polymers-13-01033-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/29f78ce1c301/polymers-13-01033-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/137c702c2b78/polymers-13-01033-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/4e816163264a/polymers-13-01033-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/f6b4559f6aba/polymers-13-01033-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/cbcbd798c7c4/polymers-13-01033-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/87058305a57f/polymers-13-01033-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/3f672daef157/polymers-13-01033-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/14fb43aec911/polymers-13-01033-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/b09b0f2fb9f9/polymers-13-01033-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/5903f2e6738c/polymers-13-01033-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/6ade0192fd37/polymers-13-01033-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/338481e332ce/polymers-13-01033-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/112e837c1c28/polymers-13-01033-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ee3/8036706/29f78ce1c301/polymers-13-01033-g012.jpg

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