Chao Wang, Yan-Li Zhou, Xiao Yang, Fan Wu, Meng-Bo Luo
{"title":"将自推进聚合物注入小圆腔","authors":"Chao Wang, Yan-Li Zhou, Xiao Yang, Fan Wu, Meng-Bo Luo","doi":"10.1007/s10118-024-3103-y","DOIUrl":null,"url":null,"abstract":"<p>The injection of a polymer chain into a small circular cavity under tangential self-propelled force is studied by using Langevin dynamics simulation. Results indicate that the injection dynamics of the active polymer shows strong correlation with the polymer conformation inside the cavity depending on the polymer rigidity (<i>k</i><sub>b</sub>). The injection time <i>τ</i> varies nonmonotonously with increasing <i>k</i><sub>b</sub>, and reaches its minimum at <i>k</i><sub>b</sub>*. When <i>k</i><sub>b</sub> is small (<i>k</i><sub>b</sub> ≪ <i>k</i><sub>b</sub>*), the polymer is nearly random coil in the cavity, and spends a long time at the final stage of the injection process due to the large repulsion between monomers inside the cavity. When <i>k</i><sub>b</sub> is moderate (<i>k</i><sub>b</sub> ∼ <i>k</i><sub>b</sub>*), the part of polymer inside the cavity forms spiral configuration under the tangential active force, and the whole polymer moves synchronously with a constant velocity during the injection process, leading to a small injection time. When <i>k</i><sub>b</sub> is large (<i>k</i><sub>b</sub> ≫ <i>k</i><sub>b</sub>*), the polymer is nearly straight at the initial stage of the injection process, and takes a long time to bend itself, leading to a large injection time.</p>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Injection of a Self-propelled Polymer into a Small Circular Cavity\",\"authors\":\"Chao Wang, Yan-Li Zhou, Xiao Yang, Fan Wu, Meng-Bo Luo\",\"doi\":\"10.1007/s10118-024-3103-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The injection of a polymer chain into a small circular cavity under tangential self-propelled force is studied by using Langevin dynamics simulation. Results indicate that the injection dynamics of the active polymer shows strong correlation with the polymer conformation inside the cavity depending on the polymer rigidity (<i>k</i><sub>b</sub>). The injection time <i>τ</i> varies nonmonotonously with increasing <i>k</i><sub>b</sub>, and reaches its minimum at <i>k</i><sub>b</sub>*. When <i>k</i><sub>b</sub> is small (<i>k</i><sub>b</sub> ≪ <i>k</i><sub>b</sub>*), the polymer is nearly random coil in the cavity, and spends a long time at the final stage of the injection process due to the large repulsion between monomers inside the cavity. When <i>k</i><sub>b</sub> is moderate (<i>k</i><sub>b</sub> ∼ <i>k</i><sub>b</sub>*), the part of polymer inside the cavity forms spiral configuration under the tangential active force, and the whole polymer moves synchronously with a constant velocity during the injection process, leading to a small injection time. When <i>k</i><sub>b</sub> is large (<i>k</i><sub>b</sub> ≫ <i>k</i><sub>b</sub>*), the polymer is nearly straight at the initial stage of the injection process, and takes a long time to bend itself, leading to a large injection time.</p>\",\"PeriodicalId\":517,\"journal\":{\"name\":\"Chinese Journal of Polymer Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-03-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Journal of Polymer Science\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s10118-024-3103-y\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10118-024-3103-y","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Injection of a Self-propelled Polymer into a Small Circular Cavity
The injection of a polymer chain into a small circular cavity under tangential self-propelled force is studied by using Langevin dynamics simulation. Results indicate that the injection dynamics of the active polymer shows strong correlation with the polymer conformation inside the cavity depending on the polymer rigidity (kb). The injection time τ varies nonmonotonously with increasing kb, and reaches its minimum at kb*. When kb is small (kb ≪ kb*), the polymer is nearly random coil in the cavity, and spends a long time at the final stage of the injection process due to the large repulsion between monomers inside the cavity. When kb is moderate (kb ∼ kb*), the part of polymer inside the cavity forms spiral configuration under the tangential active force, and the whole polymer moves synchronously with a constant velocity during the injection process, leading to a small injection time. When kb is large (kb ≫ kb*), the polymer is nearly straight at the initial stage of the injection process, and takes a long time to bend itself, leading to a large injection time.
期刊介绍:
Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985.
CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.