华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (3): 24-27.

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溶液凝聚PMMA薄膜的表征

薛锋1 傅伟文1 程镕时1,2   

  1. 1.华南理工大学 材料科学与工程学院,广东 广州 510640;2.南京大学 学化工学院,江苏 南京 210093
  • 收稿日期:2004-06-04 出版日期:2005-03-25 发布日期:2005-03-25
  • 通信作者: 薛锋(1971-),男,在职博士生,讲师,主要从事高分子凝聚态物理研究 E-mail:psfxue@scut.edu.cn
  • 作者简介:薛锋(1971-),男,在职博士生,讲师,主要从事高分子凝聚态物理研究

Characterization of Solution Casting Film of PMMA

Xue Feng1  Fu Wei-wen1  Cheng Rong-shi1,2   

  1. 1.College of Materials Science and Engineering,South China Univ.ofTech.,Guangzhou 510640,Guangdong,China;2.College of Chemistry and Chemical Engineering,Nanjing Univ.,Nanjing 210093,Jiangsu,China
  • Received:2004-06-04 Online:2005-03-25 Published:2005-03-25
  • Contact: 薛锋(1971-),男,在职博士生,讲师,主要从事高分子凝聚态物理研究 E-mail:psfxue@scut.edu.cn
  • About author:薛锋(1971-),男,在职博士生,讲师,主要从事高分子凝聚态物理研究

摘要: 将聚甲基丙烯酸甲酯(PMMA)丙酮溶液分别在自然以及超声振动下成膜,所得薄膜分别作差示扫描量热(DSC)和裂解气相色谱—质谱(PyGC—MS)表征.分析结果表明:不同成膜条件下,高分子的凝聚态结构有所不同,试样中残留的溶剂量也有差别;自然挥发所得的初生态薄膜中残留的溶剂是超声作用下所得薄膜的12倍.

关键词: 溶液凝聚, 聚甲基丙烯酸甲酯, 超声, 凝聚态结构, 表征

Abstract:

The acetone solution casting films of poly(methylmethacrylate)under natural evaporation and ultrasonic vibration were respectively characterized by DSC(Differential Scanning Calorimetry)and PyGC-MS(Pyrolysis Gas Chromatography-Mass Spectroscopy).Analytical results indicate that the condensed structure of the polymer and the residue solvent in the films are both different in different film-forming conditions,and that the residue solvated acetone in the film prepared under natural evaporation is twelve times that under ultrasonic vibration.

Key words: solution casting, poly(methylmethacrylate), ultrasonic, condensed structure, characterization