Citation: Xin LINGHU, Jun ZHAO, Rui SONG, Qing Rong FAN. Relaxation of Chain Extension of Amorphous PET Fiber Above the Glass Transition Temperature[J]. Chinese Chemical Letters, ;2000, 11(10): 925-928. shu

Relaxation of Chain Extension of Amorphous PET Fiber Above the Glass Transition Temperature

Polymer Physics Laboratory, Center of Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080

Received Date: 20 March 2000

The recovery of amorphous PET fiber in global chain orientation but nearly random segmental orientation (GOLR) state was studied by the hot shrinkage measurement above the glass transition temperature. The relaxation curves in the form of di-exponential decay were acquired and the change of two special times with the variation of treating temperature and residual recovery ratio η was discussed.
- GOLR state PET,
- recovery of chain extension,
- hot shrinkage measurement
1. [1]
  Yanjie Li , Chaoqun Qu , Siqi Meng , Jiaqi Hu , Ze Gao , Hongji Xu , Rui Gao , Ming Feng . Revealing electronic state evolution of Co(Ⅱ)/Co(Ⅲ) in CoO (111) plane during OER process through magnetic measurement. Chinese Chemical Letters, 2025, 36(3): 109872-. doi: 10.1016/j.cclet.2024.109872
2. [2]
  Chenghao Ge , Peng Wang , Pei Yuan , Tai Wu , Rongjun Zhao , Rong Huang , Lin Xie , Yong Hua . Tuning hot carrier transfer dynamics by perovskite surface modification. Chinese Chemical Letters, 2024, 35(10): 109352-. doi: 10.1016/j.cclet.2023.109352
3. [3]
  Jiaxiang Guo , Zeyi Li , Tianyu Zhang , Xinyu Tian , Yue Wang , Chuandong Dou . Thienothiophene-centered ladder-type π-systems that feature distinct quinoidal π-extension. Chinese Chemical Letters, 2024, 35(5): 109337-. doi: 10.1016/j.cclet.2023.109337
4. [4]
  Yongkang Yue , Zhou Xu , Kaiqing Ma , Fangjun Huo , Xuemei Qin , Kuanshou Zhang , Caixia Yin . HSA shrinkage optimizes the photostability of embedded dyes fundamentally to amplify their efficiency as photothermal materials. Chinese Chemical Letters, 2024, 35(8): 109223-. doi: 10.1016/j.cclet.2023.109223
5. [5]
  Chong-Chen Wang , Xiaohang Xu . Metal-organic frameworks helping resource and energy recovery from sludge. Chinese Chemical Letters, 2025, 36(10): 111287-. doi: 10.1016/j.cclet.2025.111287
6. [6]
  Tongtong Zhao , Yan Wang , Shiyue Qin , Liang Xu , Zhenhua Li . New Experiment Development: Upgrading and Regeneration of Discarded PET Plastic through Electrocatalysis. University Chemistry, 2024, 39(3): 308-315. doi: 10.3866/PKU.DXHX202309003
7. [7]
  Wenkai Liu , Yanxian Hou , Weijian Liu , Ran Wang , Shan He , Xiang Xia , Chengyuan Lv , Hua Gu , Qichao Yao , Qingze Pan , Zehou Su , Danhong Zhou , Wen Sun , Jiangli Fan , Xiaojun Peng . Se-substituted pentamethine cyanine for anticancer photodynamic therapy mediated using the hot band absorption process. Chinese Chemical Letters, 2024, 35(12): 109631-. doi: 10.1016/j.cclet.2024.109631
8. [8]
  Ziqiang Wang , Han Lin , Wenxin Wang , Hongjie Yu , You Xu , Kai Deng , Hongjing Wang , Liang Wang . High-entropy PdPtRhFeCuMo metallene nanoribbons for electro-reforming PET plastic into glycolic acid. Chinese Journal of Structural Chemistry, 2025, 44(12): 100745-100745. doi: 10.1016/j.cjsc.2025.100745
9. [9]
  Wenqing Deng , Fanfeng Deng , Ting Zhang , Junjie Lin , Liang Zhao , Gang Li , Yi Pan , Jiebin Yang . Continuous measurement of reactive ammonia in hydrogen fuel by online dilution module coupled with Fourier transform infrared spectrometer. Chinese Chemical Letters, 2025, 36(3): 110085-. doi: 10.1016/j.cclet.2024.110085
10. [10]
  Xuan Song , Teng Fu , Yajie Yang , Yahan Kuang , Xiuli Wang , Yu-Zhong Wang . Spatial-confinement combustion strategy enabling free radicals chemiluminescence direct-measurement in flame-retardant mechanism. Chinese Chemical Letters, 2025, 36(5): 110699-. doi: 10.1016/j.cclet.2024.110699
11. [11]
  Chenchen Xie , Jun Liao , Yi Li , Yunan Zhang , Zhicheng Xiao , Yun Wang , Ting Chen , Liyan Xiong , Tao Pang , Xiangao Jiang , Feng Zhang , Chuan Zhang , Tingfang Wang . Synergistic anti-inflammatory effect of cascade nanozymes for neural recovery in ischemic stroke. Chinese Chemical Letters, 2026, 37(1): 110956-. doi: 10.1016/j.cclet.2025.110956
12. [12]
  Bo Li , Yuanzhe Cheng , Xuyang Ma , Dongxu Zhao , Yang Zhang , Yongxing Sun , Jia Chen , Li Wu , Liang Zhao , Hongdeng Qiu , Yujian He . Facile and scale-up synthesis of cyano-functionalized covalent organic frameworks for selective gold recovery. Chinese Chemical Letters, 2026, 37(1): 111134-. doi: 10.1016/j.cclet.2025.111134
13. [13]
  Qihang Wu , Hui Wen , Wenhai Lin , Tingting Sun , Zhigang Xie . Alkyl chain engineering of boron dipyrromethenes for efficient photodynamic antibacterial treatment. Chinese Chemical Letters, 2024, 35(12): 109692-. doi: 10.1016/j.cclet.2024.109692
14. [14]
  Huiju Cao , Lei Shi . sp¹-Hybridized linear and cyclic carbon chain. Chinese Chemical Letters, 2025, 36(4): 110466-. doi: 10.1016/j.cclet.2024.110466
15. [15]
  Bo-Ran Chang , Lin Deng , Qing-Lian Wu , Wan-Qian Guo , Hui-Ying Xue . A review: Carbon-based materials as effective additives in anaerobic fermentation, focusing on microbial chain elongation and medium chain fatty acids production. Chinese Chemical Letters, 2025, 36(7): 110411-. doi: 10.1016/j.cclet.2024.110411
16. [16]
  Na Lu , Tingting Pang , Xuedong Jing , Yongan Zhu , Linqun Yu , Sining Ben , Yuchan Song , Shiwen Du , Wei Lu , Zhenyi Zhang . Optimizing the Schottky Barrier in AuAg Alloy Decorated TiO2 Nanofibers to Enhance Hot-Electron-Induced CO2 Reduction. Chinese Journal of Structural Chemistry, 2025, 44(8): 100633-100633. doi: 10.1016/j.cjsc.2025.100633
17. [17]
  Shuangying Li , Qingxiang Zhou , Zhi Li , Menghua Liu , Yanhui Li . Sensitive measurement of silver ions in environmental water samples integrating magnetic ion-imprinted solid phase extraction and carbon dot fluorescent sensor. Chinese Chemical Letters, 2024, 35(5): 108693-. doi: 10.1016/j.cclet.2023.108693
18. [18]
  Yun Wei , Lei Zhou , Wenbin Hu , Liming Yang , Guang Yang , Chaoqiang Wang , Hui Shi , Fei Han , Yufa Feng , Xuan Ding , Penghui Shao , Xubiao Luo . Recovery of cathode copper and ternary precursors from CuS slag derived by waste lithium-ion batteries: Process analysis and evaluation. Chinese Chemical Letters, 2024, 35(7): 109172-. doi: 10.1016/j.cclet.2023.109172
19. [19]
  Liang Lou , Xuncheng Liu , Yuanyu Wang , Tao Hu , Zhongjie Wang , Houqiang Shi , Junkai Xiong , Siqi Jing , Liankang Ye , Qihui Guo , Xiang Ge . Achieving reusability of leachate for multi-element recovery of the discarded LiNi_xCo_yMn_1-x-yO₂ cathode by regulating the co-precipitation coefficient. Chinese Chemical Letters, 2025, 36(5): 109726-. doi: 10.1016/j.cclet.2024.109726
20. [20]
  Yifei Zhang , Yuncong Xue , Laiwei Gao , Rui Liao , Feng Wang , Fei Wang . Merging non-covalent and covalent crosslinking: En route to single chain nanoparticles. Chinese Chemical Letters, 2024, 35(6): 109217-. doi: 10.1016/j.cclet.2023.109217

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1183)
HTML views(20)

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