Abstract
The influence of two kinds of polymers (polystyrene (PS), acrylonitrile−styrene copolymer (SAN)) on the crystallization behavior of isotactic polypropylene (iPP) has been investigated by means of wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), and polarized optical microscopy (POM). The current experimental results indicated that these two kinds of polymers with low concentration, as special β-nucleating agents, can induce the β-iPP polymorph during quiescent melt crystallization. The nucleating activity of SAN or PS significantly depends on its concentration, molecular structure, and thermal history of processing. The content of β-crystal form increases with the increasing crystallization temperature or nucleating agent (SAN or PS) percentage, reaches a maximum value, and then decreases as the temperature or nucleating agent percentage further increases. Under the same crystallization condition, SAN is more effective than PS on inducing a higher level of β-crystal form in iP...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
