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

Wei Ma, Hideyuki Otsuka, Atsushi Takahara

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)5543-5550
Number of pages8
Journalpolymer
Volume52
Issue number24
DOIs
Publication statusPublished - Nov 10 2011

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Polymethyl Methacrylate
Free radical polymerization
Polymethyl methacrylates
Polyvinyl Chloride
Polyvinyl chlorides
Vinyl Chloride
Atom transfer radical polymerization
Differential scanning calorimetry
Adhesion
Transmission electron microscopy
Scanning electron microscopy
Liquid nitrogen
Temperature
Nanotubes
Clay
Phosphates
Electrons
Water

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Preparation and properties of PVC/PMMA-g-imogolite nanohybrid via surface-initiated radical polymerization. / Ma, Wei; Otsuka, Hideyuki; Takahara, Atsushi.

In: polymer, Vol. 52, No. 24, 10.11.2011, p. 5543-5550.

Research output: Contribution to journalArticle

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