24小时热门版块排行榜

>论坛更新日志 (2285)
>论文道贺祈福 (38)
>虫友互识 (25)
>硕博家园 (21)
>导师招生 (20)
>休闲灌水 (20)
>考研 (18)
>论文投稿 (17)
>博后之家 (15)
>基金申请 (15)
>考博 (15)
>找工作 (14)
>公派出国 (13)
>教师之家 (11)
>文献求助 (10)
>物理 (3)

返回列表

wyhqqxx623

银虫 (小有名气)

应助: 0 (幼儿园)
金币: 271.4
帖子: 163
在线: 102.8小时
虫号: 1129956

[交流] 【求助】问个透射电镜的问题

如果我做的PS-PMMA的壳-核结构微球在200KV电压，40pA电流下做透射电镜，这样会不会导致PMMA溶解？谢谢！
原文如下：Fig. 3 show a TEM photograph of PMMA-PS composite particles after exposure to a strong electron beam: accelerating voltage, 200 kV; cur- rent density, 40 pA/cm2. Each particle has a less dark circular region inside the particle, though the contrast of the composite particles before the exposure was homogeneous as shown in Fig. 2b. Actually, PS particles were not changed, but PMMA seed particles which consisted of the core were clearly resolved under the exposure.

回复此楼