FTIR studies also showed that polyisoimide was isomerized to polyimide under heating conditions.

 
  • 進(jìn)一步的工作還表明:聚異酰亞胺受熱轉化為聚酰亞胺。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan