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Journal of Materials Science

, Volume 45, Issue 4, pp 987–992 | Cite as

An unusual morphology and crystallization behavior in in situ formed polyphenylene oxide/polyamide 6 blends

  • Yulin LiEmail author
  • Guisheng Yang
Article

Abstract

Novel polyphenylene oxide/polyamide 6 (PPO/PA6) blends were synthesized via in situ polymerization of ε-caprolactam with PPO dissolved in it. The introduction of 10 wt% PPO into PPO/PA6 led to phase inversion of the blends, which was nearly completed by incorporating 15 wt% PPO into the blends. A single crystallization temperature (Tc) of PA6 was detected for PPO/PA6 with 1–4 wt% PPO, while double Tc existed in the blends with 6–15 wt% PPO. After eliminating previous thermal history, PPO/PA6 containing no more than 6 wt% PPO gave a single melting point (Tm), but the blends with 10–15 wt% PPO exhibited double Tm. Increasing PPO content in PA6 resulted in the transformation of its crystal form from α-crystal to γ-crystal, which might be attributed to hindrance of crystallization of PA6 particles in PPO-rich phase.

Keywords

Differential Scanning Calorimeter Phase Inversion Polyphenylene Oxide Differential Scanning Calorimeter Melting Curf Secondary Phase Separation 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Centro de Química da Madeira, Universidade da MadeiraFunchalPortugal
  2. 2.Joint Laboratory of Polymer Science and Materials, Institute of ChemistryChinese Academy of SciencesBeijingPeople’s Republic of China

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