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Synthesis and properties of monomer casting polyamide 6/poly(methyl methacrylate) blends
Author(s) -
Wu Tongfei,
Xie Tingxiu,
Yang Guisheng
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29014
Subject(s) - materials science , polyamide , differential scanning calorimetry , thermogravimetric analysis , polymer chemistry , methyl methacrylate , monomer , thermal stability , caprolactam , polymerization , chemical engineering , poly(methyl methacrylate) , microporous material , crystallization , polymer , composite material , physics , engineering , thermodynamics
We successfully synthesized monomer casting polyamide 6 (MCPA6)/poly(methyl methacrylate) (PMMA) blends in two steps: (1) radical polymerization of methyl methacrylate in ϵ‐caprolactam and (2) anionic ring‐opening polymerization of this ϵ‐caprolactam solution. The influence of PMMA on the crystallization behavior of MCPA6 was studied with differential scanning calorimetry and X‐ray diffraction, which showed that PMMA could act as a heterogeneous nucleation agent and favored the formation of the γ‐crystalline form. The rheological properties were also studied and indicated that PMMA reduced the interaction between MCPA6 chains by lowering the density of hydrogen bonding. This study used a novel and convenient method to prepare microporous MCPA6/PMMA particles that involved removing the continuous phase. Their surface area and thermal stability were characterized by the Brunauer–Emmett–Teller method and thermogravimetric analysis, respectively. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009