Preparation and properties of PVC/PMMA-g-imogolite nanohybrid via surface-initiated radical polymerization

Wei Ma, Hideyuki Otsuka, Atsushi Takahara

研究成果: ジャーナルへの寄稿学術誌査読

27 被引用数 (Scopus)

抄録

Poly(methyl methacrylate) (PMMA) grafted imogolite clay nanotubes (PMMA-g-imogolite) were prepared through activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP) by developing a water soluble amphiphilic ATRP initiator, which carries both an initiator moiety and a surface-attachable phosphate group. Poly(vinyl chloride)/PMMA-g-imogolite nanohybrid was prepared by using this PMMA grafted imogolite. The structure and properties of the prepared nanohybrid were characterized by differential scanning calorimetry (DSC), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and tensile test. DSC and TEM results indicate that well-dispersed PMMA-g-imogolite dominates in the nanohybrid, in spite of some imogolite rich regions. SEM observation of the fracture surfaces and the fractured films reveals that the interfacial adhesion between PMMA grafted imogolite and the matrix may be weak or strong with respect to the cohesive energy of the poly(vinyl chloride) (PVC) matrix, depending on the environmental temperature. In liquid nitrogen or at room temperature, the interfacial adhesion between PMMA grafted imogolite and the matrix is weaker, while at 90 °C, is stronger than the cohesion of the PVC matrix. In accordance with the interfacial performance, the nanohybrid shows inferior tensile performance at room temperature; whereas, superior tensile performance at 90 °C compared with the pristine PVC.

本文言語英語
ページ(範囲)5543-5550
ページ数8
ジャーナルpolymer
52
24
DOI
出版ステータス出版済み - 11月 10 2011

!!!All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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