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铁虫 (初入文坛)

[求助] PEO结晶

100nm厚的PEO薄膜在偏光显微镜下能看到球晶, 但是XRD却测不出结晶峰?
结晶聚合物一般怎么做XRD, 是一定要用粉末吗?
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guoyi1970

铁虫 (初入文坛)

高分子材料用粉末和膜都能做XRD,关键看你要测定那种状态下的XRD,如将粉末变成薄膜,这一过程的条件会影响结晶。你用100nm的膜测定XRD,样品太薄了,所以测不出信号
2楼2012-03-20 10:39:45
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