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去质子化甲基丙烯酸2-(乙酰乙酰氧基)乙酯(AAEMA)聚合物中有序纳米孔隙率的直接观察：初步结果

Direct Observations of Ordered Nanoporosity in Deprotonated 2-(Acetoacetoxy)ethyl Methacrylate (AAEMA) Polymer: Preliminary Results.

作者信息

Fiore Ambra M, Fiore Saverio, Huertas F Javier, Mastrorilli Piero

机构信息

Department of Chemistry, University of Bari "Aldo Moro", 70125 Bari, Italy.

Institute of Methodologies for Environmental Analysis, National Research Council of Italy (IMAA-CNR), Tito Scalo, 85050 Potenza, Italy.

出版信息

Polymers (Basel). 2023 Dec 23;16(1):58. doi: 10.3390/polym16010058.

DOI:10.3390/polym16010058
PMID:38201723
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10780716/
Abstract

Polymers based on 2-(acetoacetoxy)ethyl methacrylate, charged with iron or sodium, were thermally heated at 150 °C. Both polymers were studied and characterized by SEM, TEM, STEM microscopy and SAEDF techniques. The morphological investigation revealed that, upon heating, both polymers were endowed with microholes, sometimes perfectly ordered, whose dimensions varied from 4-5 nm to approximately 500 nm. In the case of an Fe-containing copolymer, unexpectedly, iron did not fill in the cavities, thus implying that it was "dispersed" in the polymeric matrix. Electronic microdiffraction documented that both polymers exhibited a proto-crystallinity, likely induced by thermal heating.

摘要

基于甲基丙烯酸2-(乙酰乙酰氧基)乙酯、负载铁或钠的聚合物在150℃下进行热加热。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、扫描透射电子显微镜（STEM）和选区电子衍射花样（SAEDF）技术对这两种聚合物进行了研究和表征。形态学研究表明，加热后，两种聚合物都具有微孔，有时排列非常规整，其尺寸从4 - 5纳米到约500纳米不等。在含铁共聚物的情况下，出乎意料的是，铁并未填充到孔洞中，这意味着它“分散”在聚合物基体中。电子微衍射证明，这两种聚合物都表现出原结晶性，可能是由热加热诱导产生的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/0fd54238df01/polymers-16-00058-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/29bbd0498cce/polymers-16-00058-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/efd10a3fcfea/polymers-16-00058-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/1b1c50c59925/polymers-16-00058-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/5bd42d316cce/polymers-16-00058-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/6bf6281fb56a/polymers-16-00058-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/1871653fb678/polymers-16-00058-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/67d4b92c3d03/polymers-16-00058-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/0fd54238df01/polymers-16-00058-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/29bbd0498cce/polymers-16-00058-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/efd10a3fcfea/polymers-16-00058-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/1b1c50c59925/polymers-16-00058-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/5bd42d316cce/polymers-16-00058-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/6bf6281fb56a/polymers-16-00058-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/1871653fb678/polymers-16-00058-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/67d4b92c3d03/polymers-16-00058-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f41/10780716/0fd54238df01/polymers-16-00058-g008.jpg

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