Abstract
Crystallization behaviors of alkane side-chains in densely grafted comb-like vinyl or acrylate polymers are influenced by their long-chain backbones as observed in experiments. By means of dynamic Monte Carlo simulations of the lattice polymer model, we compared cooling and isothermal crystallization behaviors of side chains in bulk alternatingly grafted polymers separately holding crystallizable and non-crystallizable long-chain backbones. The results of a series of side-chain lengths showed that both non-crystallizable backbones and very short side chains suppress side-chain crystallization in agreement with experiments, demonstrating the constraint effects of the backbone on side-chain crystallization. However, both crystallizable and non-crystallizable long-chain backbones maintain their nearly random-coil conformation over side-chain crystallization, not adopting the expected bottle-brush shapes. We discussed the related experimental observations on crystal morphologies that derived the bottle-brush assumption. Our observations facilitate a better understanding of structure-property relationships for side-chain crystallization in densely grafted comb-like polymers holding relatively long backbones.
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.
