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在聚甲醛等不耐电子辐照的高聚物的形态结构研究中,复型技术几乎是唯一有效的制样技术。Tren~+等人的研究发现四氧化钌有较强的氧化能力,可与醚键发生反应,为聚甲醛的形态结构研究提供了一种新的可能性。我们前已报导,含有7％乙烯共聚单元的共聚甲醛与聚甲醛属同晶型,即乙烯链节可进入聚甲醛的结晶区域。因此,进一步研究共聚单元怎样影响聚甲醛的结晶形态对于深入了解这种工程塑料的结构—性能关系是有意义的。为此,本文初步试探了四氧化钌染色方法用于聚甲醛形态结构的可能性。
In polyformaldehyde and other impatient electron irradiation of the polymer morphology and structure studies, complex technology is almost the only effective sample preparation technology. Tren ~ + et al. Found that ruthenium tetroxide has a strong oxidizing ability and can react with ether bonds, which provides a new possibility for the study of the morphological structure of polyoxymethylene. We have previously reported that the copolymerized formaldehyde containing 7% of ethylene copolymerized units is isomorphic to polyoxymethylene, ie, the ethylene chain can enter the crystalline region of polyoxymethylene. Therefore, further studies of how the copolymerized units affect the crystalline morphology of POM are instructive for a deeper understanding of the structural-property relationships of such engineering plastics. Therefore, this article tentatively explores the possibility of the ruthenium tetroxide staining method for the morphological structure of polyoxymethylene.