Abstract
The growth rate of isotactic polystyrene (iPS) crystals has been investigated for crystallization in concentrated dimethyl phthalate solutions and in the melt over a wide range of supercooling from 20 to 170 K. For most of the supercoolings studied, the growth faces are rough; nucleation is not present. However, the growth rate G for each concentration shows approximately the same dependence on supercooling ΔT as growth controlled by secondary nucleation: log( G β ) depends linearly on K TΔT , where β is a transport factor and K is a constant. The value of K increases with decreasing concentration. Possible mechanisms for crystal growth are discussed, taking account of the deposition of one stem on growth faces; the side surface free energy increases with decreasing concentration.
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.
