Journal of Thermal Analysis and Calorimetry

, Volume 136, Issue 3, pp 1103–1116 | Cite as

Investigation into the morphology, crystallization and melting behaviour of nylon 6,6/LCP blends

  • Sandeep Padmakar Jape
  • Vineeta Dinesh DeshpandeEmail author


The morphology, isothermal crystallization and melting behaviour of melt-mixed nylon 6,6/Vectra A950 liquid crystalline polymer (LCP) blends were investigated. The blends formed an immiscible system for all compositions, and the inclusion of LCP, especially at low content, accelerated the bulk crystallization rate of the matrix. The addition of LCP was also found to decrease the crystallite size in the growth direction. The effect of thermal history on the triple melting behaviour and the equilibrium melting temperature was discussed. The equilibrium meting temperature was determined to be lower in the blends. Lauritzen-Hoffman analysis on the crystallization data revealed an apparent regime I to II transition in all the samples. The blends showed lower fold surface energy and work of chain folding as compared to nylon 6,6.


Nylon 6,6 Liquid crystalline polymers Blends Crystallization Melting behaviour 



The authors would like to express their gratitude to Dr Jain, and Dr. Satpute of PerkinElmer India for extending their DSC facility for initial testing. The authors would also like to thank Prof. Kalkar for his inputs in preparation of this paper. Sandeep Jape had received fellowship from University Grants Commission, Government of India, New Delhi under Special Assistance Program (SAP); contract grant number: F.4-1/2006(BSR)/5-65/2007. He had since then received financial assistance from TEQIP

Supplementary material

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Supplementary material 1 (DOCX 2719 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Sandeep Padmakar Jape
    • 1
  • Vineeta Dinesh Deshpande
    • 1
    Email author
  1. 1.Department of PhysicsInstitute of Chemical TechnologyMatungaIndia

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