Citation: . A RHEOLOGICAL MODEL FOR POLYMER MELTS WITH INTERNAL STRUCTURE IN FLOW FIELDS*[J]. Chinese Journal of Polymer Science, ;1999, 17(2): 151-158. shu

A RHEOLOGICAL MODEL FOR POLYMER MELTS WITH INTERNAL STRUCTURE IN FLOW FIELDS*

Received Date: 3 December 1997

Conceptually, an imagined conformation ellipsoid is supposed to represent the shape of a polymerchain for polymer melts in flow fields and to be equivalent to the volume element in a mathematical sense incontinuum mechanics. A power law dependence of shear modulus of polymer melts on detC, referred to asenvelope volume, is proposed. Based on those assumptions and the non-linear relation of shear modulus, aphenomenological viscoelastic model is derived. The model is tested in simple shear flow, simple elongational flow,oscillatory shear flow,and relaxation process after flow suddenly stopped.The results show that the model works well to predict the change of internal structure and viscoelastic performance of polymer melts in flow fields.
1. [1]
  Siting Cai , Xiang Chen , Shuli Wang , Xinqin Liao , Zhong Chen , Yue Lin . Silica coating of quantum dots and their applications in optoelectronic fields. Chinese Chemical Letters, 2025, 36(6): 110798-. doi: 10.1016/j.cclet.2024.110798
2. [2]
  Hui Jin , Qin Cai , Peiwen Liu , Yan Chen , Derong Wang , Weiping Zhu , Yufang Xu , Xuhong Qian . Multistep continuous flow synthesis of Erlotinib. Chinese Chemical Letters, 2024, 35(4): 108721-. doi: 10.1016/j.cclet.2023.108721
3. [3]
  Junhua Li , Tianci Shen , Yahui Zhuang , Yu Fu , Yian Shi . Pd-Catalyzed highly regioselective migratory hydroesterification of internal olefins with formates. Chinese Chemical Letters, 2025, 36(7): 110599-. doi: 10.1016/j.cclet.2024.110599
4. [4]
  Zhiyu Shao , Shaohua Wang , Haijia Yu , Diyang Shan , Zhiyu Tang , Yihang Fu , Jianshi Du , Jianhua Liu , Keke Huang . The applied progress and prospects of sub-nanometer high-entropy materials in the fields of electrocatalysis and biomedicine: Review and outlook. Chinese Chemical Letters, 2026, 37(8): 111910-. doi: 10.1016/j.cclet.2025.111910
5. [5]
  Bingwei Wang , Yihong Ding , Xiao Tian . Benchmarking model chemistry composite calculations for vertical ionization potential of molecular systems. Chinese Chemical Letters, 2025, 36(2): 109721-. doi: 10.1016/j.cclet.2024.109721
6. [6]
  Chen Chen , Jinzhou Zheng , Chaoqin Chu , Qinkun Xiao , Chaozheng He , Xi Fu . An effective method for generating crystal structures based on the variational autoencoder and the diffusion model. Chinese Chemical Letters, 2025, 36(4): 109739-. doi: 10.1016/j.cclet.2024.109739
7. [7]
  Xiaoli Zhong , Liangsheng Chen , Hao Xu , Tianhang Jiang , Zhengyi Hua , Fancheng Tan , Xiaoya Mao , Ziquan Fan , Zhiwei Li , Jun Zeng , Shu-Hai Lin . Development of a comprehensive computational pipeline for cardiolipin atlas in an intermittent fasting model. Chinese Chemical Letters, 2025, 36(12): 111027-. doi: 10.1016/j.cclet.2025.111027
8. [8]
  Huamei Chen , Damian Nieckarz , Krisztián Palotás , Jie Li , Zhen Xu , Yajie Zhang , Marek Stankevič , Yang He , Kai Wu , Yongfeng Wang , Paweł Szabelski . Nitrogen-doped Sierpiński triangle fractals: From model to reality. Chinese Chemical Letters, 2026, 37(8): 111280-. doi: 10.1016/j.cclet.2025.111280
9. [9]
  Peiwen Liu , Fang Zhao , Jing Zhang , Yunpeng Bai , Jinxing Ye , Bo Bao , Xinggui Zhou , Li Zhang , Changlu Zhou , Xinhai Yu , Peng Zuo , Jianye Xia , Lian Cen , Yangyang Yang , Guoyue Shi , Lin Xu , Weiping Zhu , Yufang Xu , Xuhong Qian . Micro/nano flow chemistry by Beyond Limits Manufacturing. Chinese Chemical Letters, 2024, 35(5): 109020-. doi: 10.1016/j.cclet.2023.109020
10. [10]
  Zhen Zhang , Rui Su , Xiongjun Xiao , Jiaxin Yang , Yuwei Li , Tiemin Sun , Yang Liu , Chengjun Wu . A continuous-flow process for the synthesis of balsalazide disodium. Chinese Chemical Letters, 2026, 37(7): 111965-. doi: 10.1016/j.cclet.2025.111965
11. [11]
  Huashan Huang , Jingze Chen , Luyun Zhang , Hong Yan , Siqi Li , Fen-Er Chen . Oscillatory flow reactor facilitates fast photochemical Wolff rearrangement toward synthesis of α-substituted amides in flow. Chinese Chemical Letters, 2025, 36(2): 109992-. doi: 10.1016/j.cclet.2024.109992
12. [12]
  Hang Chen , Chengzhi Cui , Hebo Ye , Hanxun Zou , Lei You . Enhancing hydrolytic stability of dynamic imine bonds and polymers in acidic media with internal protecting groups. Chinese Chemical Letters, 2024, 35(5): 109145-. doi: 10.1016/j.cclet.2023.109145
13. [13]
  Haiyan Lu , Jiayue Ye , Yiping Wei , Hua Zhang , Konstantin Chingin , Vladimir Frankevich , Huanwen Chen . Tracing molecular margins of lung cancer by internal extractive electrospray ionization mass spectrometry. Chinese Chemical Letters, 2025, 36(2): 110077-. doi: 10.1016/j.cclet.2024.110077
14. [14]
  Fan Chen , Xiaoyu Zhao , Weihang Miao , Yingying Li , Ye Yuan , Lingling Chu . Regio- and enantioselective hydrofluorination of internal alkenes via nickel-catalyzed hydrogen atom transfer. Chinese Chemical Letters, 2025, 36(5): 110239-. doi: 10.1016/j.cclet.2024.110239
15. [15]
  Xiaosheng Zhao , Jie Gao , Kun Shi , Chixiang Zhang , Wenliang Ma , Guo Lyu , Jun Zhang , Jing Lu , Qiangqiang Liu , Xianjin Luo , Kunru Yu , Jianguo Li , Qiang Ge , Jiming Cai , Chang Liu , Zhiyong Qian . A new radioactive microsphere: Y-90 carbon microsphere for selective internal radiation therapy of advanced liver cancer. Chinese Chemical Letters, 2025, 36(8): 110662-. doi: 10.1016/j.cclet.2024.110662
16. [16]
  Shaomin Liu , Yujuan Zhao , Shijie Li , Zaiwang Zhao . Design hydrophobic-internal and hydrophilic-external micropores for the preparation of microporous water. Chinese Journal of Structural Chemistry, 2025, 44(11): 100701-100701. doi: 10.1016/j.cjsc.2025.100701
17. [17]
  Sunbin Yang , Huanglin Dou , Feng Li , Jiajun Chen , Zhenxin Zhao , Xiaoming Qiu , Xiaomin Wang . Achieving internal reversible plating/stripping by designing three-dimensional magnesiophilic gradient conductivity scaffolds for rechargeable Mg batteries. Chinese Chemical Letters, 2026, 37(7): 111080-. doi: 10.1016/j.cclet.2025.111080
18. [18]
  Meng-Hao Li , Hui Hui , Yan Wang , Weiwei Huan , Ying-Wei Yang . Engineering macrocyclic nanoconfinement in covalent networks via internal charge redistribution for defined photocatalysis and adsorption. Chinese Chemical Letters, 2026, 37(8): 112016-. doi: 10.1016/j.cclet.2025.112016
19. [19]
  Tao Wei , Jiahao Lu , Pan Zhang , Qi Zhang , Guang Yang , Ruizhi Yang , Daifen Chen , Qian Wang , Yongfu Tang . An intermittent lithium deposition model based on bimetallic MOFs derivatives for dendrite-free lithium anode with ultrahigh areal capacity. Chinese Chemical Letters, 2024, 35(8): 109122-. doi: 10.1016/j.cclet.2023.109122
20. [20]
  Jun-Yang Wang , Yu-Qing Wei , Qing-Ning Wang , Zhi-Guo Wang , Rui Hong , Lisha Yi , Ping Xu , Jia-Zhuang Xu , Zhong-Ming Li , Baisong Zhao . Mucus-inspired lubricative antibacterial coating to reduce airway complications in an intubation cynomolgus monkey model. Chinese Chemical Letters, 2025, 36(8): 110559-. doi: 10.1016/j.cclet.2024.110559

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1679)
HTML views(52)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return