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首页> 外文期刊>Journal of Applied Polymer Science >MORPHOLOGICAL STUDIES OF THE MODIFIED MATERIALS - LOW-DENSITY POLYETHYLENE/POLY(ACRYLIC ACID)/EUROPIUM(III) AND LOW-DENSITY POLYETHYLENE/POLY(ACRYLIC ACID)/URANYL ION
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MORPHOLOGICAL STUDIES OF THE MODIFIED MATERIALS - LOW-DENSITY POLYETHYLENE/POLY(ACRYLIC ACID)/EUROPIUM(III) AND LOW-DENSITY POLYETHYLENE/POLY(ACRYLIC ACID)/URANYL ION

机译：改性材料的形态学研究-低密度聚乙烯/聚丙烯酸酯/ EUR（III）和低密度聚乙烯/聚丙烯酸酯/铀/离子

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摘要

The morphology of low-density polyethylene (LDPE) modified by in situ sorption and thermal polymerization of acrylic acid (AA) in the matrix was examined. The microstructure of the LDPE/poly(acrylic acid) (PAA) materials after Eu3+ and UO22+ ion exchange was investigated. The phase behavior of these materials was analyzed using X-ray diffraction, scanning electron microscopy (SEM), and thermal measurements (DSC). The X-ray diffraction studies showed that PAA is located at amorphous region of the matrix. The LDPE/PAA surface, as investigate by SEM, was apparently homogeneous before and after Eu3+ and UO22+ ion exchange, respectively. Two T-g values were found for the LDPE/PAA material before and after Eu3+ ion exchange. Also, three and four T-g values were found for LDPE/PAA after UO22+ ion exchange depending on the amount of UO22+ in the modified matrix. This indicates microphase domains in the LPDE/PAA-, LPDE/PAA/Eu3+-, and LPDE/PAA/UO22+-modified materials, although a lack of visible phase separation in the micrographs was observed. (C) 1996 John Wiley & Sons, Inc. [References: 11]
机译：研究了通过在基质中原位吸附和热聚合丙烯酸（AA）改性的低密度聚乙烯（LDPE）的形态。研究了Eu3 +和UO22 +离子交换后LDPE /聚丙烯酸（PAA）材料的微观结构。使用X射线衍射，扫描电子显微镜（SEM）和热测量（DSC）分析了这些材料的相行为。 X射线衍射研究表明PAA位于基质的非晶区。通过SEM研究，LDPE / PAA表面在Eu3 +和UO22 +离子交换之前和之后分别是均匀的。在Eu3 +离子交换之前和之后，发现LDPE / PAA材料的两个T-g值。同样，根据改性基质中UO22 +的量，在UO22 +离子交换后，发现LDPE / PAA的三个和四个T-g值。这表明在LPDE / PAA-，LPDE / PAA / Eu3 +-和LPDE / PAA / UO22 +改性的材料中存在微相域，尽管在显微照片中观察不到可见的相分离。 （C）1996 John Wiley＆Sons，Inc. [参考：11]

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