Morphological observation of single-chain poly(methyl methacrylate) particles

Ming Ni, Liusheng Chen, Shijun Jia, Xigao Jin, Shouren Ge, Atsushi Takahara, Tisato Kajiyama

研究成果: ジャーナルへの寄稿学術誌査読


Tapping mode atomic force microscope has been applied to observe single-chain PMMA particles which were stored for six months at room temperature after sprayed from very dilute solutions in good solvents, good/poor mixed solvents, and a theta solvent. Monodisperse PMMA standards of molecular weights ranging from 7.90 × 104 to 1.3 × 106 were used to investigate the effect of molecular weight on the size of the single-chain PMMA particles. These single-chain particles showed close to spherical shapes. The morphology of single-chain PMMA particles of a given molecular weight was found to be identical in spite of different solvents used for solution spraying. Molecular weight dependence of the particle dimension was also found. The diameters of single-chain PMMA particles after correction of tip-geometry effect were compared to the values estimated from molecular weight and density.

ジャーナルChinese Journal of Polymer Science (English Edition)
出版ステータス出版済み - 12月 1 1997

!!!All Science Journal Classification (ASJC) codes

  • 化学工学(全般)
  • 有機化学
  • ポリマーおよびプラスチック


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