Open AccessThe Effect of Grafting Density on the Crystallization Behaviors of Polymer Chains Grafted onto One-Dimensional Nanorod
Author(s) -
Tongfan Hao,
Yongqiang Ming,
Shuihua Zhang,
Dapeng Xu,
Zhiping Zhou,
Yijing Nie
Publication year - 2019
Publication title -
advances in polymer technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 44
eISSN - 1098-2329
pISSN - 0730-6679
DOI - 10.1155/2019/6491532
Subject(s) - materials science , nanorod , crystallization , polymer , radius of gyration , grafting , chemical engineering , nanotechnology , composite material , engineering
The crystallization behaviors of five polymer chain systems grafted on a nanorod and the corresponding effect of grafting density were investigated by dynamic Monte Carlo simulations. The segment density near the interfacial regions, the number of crystallites, and the mean square radius of gyration () increase with increasing grafting density, which are beneficial to the enhancement of crystallizability. Meanwhile, the crystalline morphology is greatly influenced by grafting density and polymer-nanorod interaction. For the grafted system with 52 chains, a nanohybrid shish-kebab (NHSK) structure is formed, when the polymer-nanorod interaction ( E b / E c ) is -0.4. For the system with 128 chains, a NHSK structure is formed, when E b / E c is -1.0. For the system with 252 chains, NHSK structure cannot be formed. The findings in this work can supply important theoretical reference for the design, preparation, and application of polymer nanocomposites.