• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Chemistry
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Chemistry
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Interlocking shish-kebab morphology in polybutene-1

      Thumbnail
      View / Download
      724.2 Kb
      Author(s)
      Kalay, G.
      Kalay, C. R.
      Date
      2002
      Source Title
      Journal of Polymer Science, Part B: Polymer Physics
      Print ISSN
      0887-6266
      Publisher
      John Wiley & Sons, Inc.
      Volume
      40
      Issue
      17
      Pages
      1828 - 1834
      Language
      English
      Type
      Article
      Item Usage Stats
      189
      views
      202
      downloads
      Abstract
      The aim of this research was to explore the effect of shear-controlled orientation injection molding (SCORIM) on polybutene-1 (PB-1). This article describes the methods and processing conditions used for injection molding and discusses the properties of the moldings. Both conventional and SCORIM have been used for the production of moldings. SCORIM is based on the application of specific macroscopic shears to a solidifying melt that facilitates enhanced molecular alignment. The effect of the process was investigated by performing mechanical tests, X-ray studies, differential scanning calorimetric studies, polarized light microscopy, and atomic force microscopy (AFM). Moldings exhibited an improved mechanical performance as compared with conventional moldings. Young's modulus was increased over twofold, and the impact energy was enhanced by 60%. The improvement in mechanical performance was combined with an increase in crystallinity and enhanced molecular orientation. The application of SCORIM also favored the formation of the stable Form I' in PB-1. The formation of interlocking shish-kebab morphology following the application of SCORIM was observed in the AFM studies. Relationships between the mechanical properties of PB-1 and the micromorphologies formed during processing are demonstrated.
      Keywords
      Injection molding
      Orientation
      Poly(1 - butene)
      Polybutene - 1
      Structure-property relations
      Aging of materials
      Atomic force microscopy
      Crystal microstructure
      Crystallization
      Differential scanning calorimetry
      Elastic moduli
      Mechanical testing
      Molecular orientation
      Molecular weight
      Morphology
      Physical properties
      Crystallinity
      Impact energy
      Polarized light microscopy
      Shear - controlled orientation injection molding
      Shish - kebab morphology
      X ray studies
      Polybutenes
      Permalink
      http://hdl.handle.net/11693/24650
      Published Version (Please cite this version)
      http://dx.doi.org/10.1002/polb.10246
      Collections
      • Department of Chemistry 677
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsCoursesThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsCourses

      My Account

      Login

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 2976
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy