Citation: LIU Xiaoping, HU Shirru, SHI Lianghe, XUMao. STUDIES ON THE KINETICS OF PHASE TRANSITIONS OF A MAIN CHAIN THERMOTROPIC POLYESTER[J]. Chinese Journal of Polymer Science, ;1989, 7(1): 66-74. shu

STUDIES ON THE KINETICS OF PHASE TRANSITIONS OF A MAIN CHAIN THERMOTROPIC POLYESTER

Received Date: 8 April 1988

The kinetics of phase transitions including a transition between mesophases were studied for a main-chain thermotropic polyester by means of DSC and depolarizing transmittance techniques. The isothermal process of these transitions was found to be described by the Avrami equation to high conversions. The Avrami exponents n are about 2,4, 5.3 and 2.2 for liquid crystallization, transition between mesophases and crystallization from mesophase respectively. The liquid crystallization from isotropic liquid phase occurs at very low undercoolings with high transformation rate.This behavior is explained as the results of the smaller value of the surface free energy for mesophase than that for crystallites which is evidenced by the very weak temperature dependence of liquid crystallization rate.
1. [1]
  Shengyu Zhao , Qinhao Shi , Wuliang Feng , Yang Liu , Xinxin Yang , Xingli Zou , Xionggang Lu , Yufeng Zhao . Suppression of multistep phase transitions of O3-type cathode for sodium-ion batteries. Chinese Chemical Letters, 2024, 35(5): 108606-. doi: 10.1016/j.cclet.2023.108606
2. [2]
  Haibo Ye , Qianyu Li , Juan Li , Didi Li , Zhimin Ao . Review on the abiotic degradation of biodegradable plastic poly(butylene adipate-terephthalate): Mechanisms and main factors of the degradation. Chinese Chemical Letters, 2025, 36(1): 109861-. doi: 10.1016/j.cclet.2024.109861
3. [3]
  Yi Zhang , Biao Wang , Chao Hu , Muhammad Humayun , Yaping Huang , Yulin Cao , Mosaad Negem , Yigang Ding , Chundong Wang . Fe–Ni–F electrocatalyst for enhancing reaction kinetics of water oxidation. Chinese Journal of Structural Chemistry, 2024, 43(2): 100243-100243. doi: 10.1016/j.cjsc.2024.100243
4. [4]
  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
5. [5]
  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
6. [6]
  Weichen Zhu , Wei Zuo , Pu Wang , Wei Zhan , Jun Zhang , Lipin Li , Yu Tian , Hong Qi , Rui Huang . Fe-N-C heterogeneous Fenton-like catalyst for the degradation of tetracycline: Fe-N coordination and mechanism studies. Chinese Chemical Letters, 2024, 35(9): 109341-. doi: 10.1016/j.cclet.2023.109341
7. [7]
  Tengfei Yang , Jingshuai Xiao , Xiao Sun , Yan Song , Chaozheng He . Facilitating the polysulfides conversion kinetics by porous LaOCl nanofibers towards long-cycling lithium-sulfur batteries. Chinese Chemical Letters, 2025, 36(3): 109691-. doi: 10.1016/j.cclet.2024.109691
8. [8]
  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
9. [9]
  Haoran Shi , Jiaxin Wang , Yuqin Zhu , Hongyang Li , Guodong Ju , Lanlan Zhang , Chao Wang . Highly selective α-C(sp³)-H arylation of alkenyl amides via nickel chain-walking catalysis. Chinese Chemical Letters, 2024, 35(7): 109333-. doi: 10.1016/j.cclet.2023.109333
10. [10]
  Yao HUANG , Yingshu WU , Zhichun BAO , Yue HUANG , Shangfeng TANG , Ruixue LIU , Yancheng LIU , Hong LIANG . Copper complexes of anthrahydrazone bearing pyridyl side chain: Synthesis, crystal structure, anticancer activity, and DNA binding. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 213-224. doi: 10.11862/CJIC.20240359
11. [11]
  Yi Herng Chan , Zhe Phak Chan , Serene Sow Mun Lock , Chung Loong Yiin , Shin Ying Foong , Mee Kee Wong , Muhammad Anwar Ishak , Ven Chian Quek , Shengbo Ge , Su Shiung Lam . Thermal pyrolysis conversion of methane to hydrogen (H₂): A review on process parameters, reaction kinetics and techno-economic analysis. Chinese Chemical Letters, 2024, 35(8): 109329-. doi: 10.1016/j.cclet.2023.109329
12. [12]
  Pengcheng Su , Shizheng Chen , Zhihong Yang , Ningning Zhong , Chenzi Jiang , Wanbin Li . Vapor-phase postsynthetic amination of hypercrosslinked polymers for efficient iodine capture. Chinese Chemical Letters, 2024, 35(9): 109357-. doi: 10.1016/j.cclet.2023.109357
13. [13]
  Ce Liang , Qiuhui Sun , Adel Al-Salihy , Mengxin Chen , Ping Xu . Recent advances in crystal phase induced surface-enhanced Raman scattering. Chinese Chemical Letters, 2024, 35(9): 109306-. doi: 10.1016/j.cclet.2023.109306
14. [14]
  Mengjia Luo , Yi Qiu , Zhengyang Zhou . Exploring temperature-driven phase dynamics of phosphate: The periodic to incommensurately modulated long-range ordered phase transition in CsCdPO4. Chinese Journal of Structural Chemistry, 2025, 44(1): 100446-100446. doi: 10.1016/j.cjsc.2024.100446
15. [15]
  Ruonan Yang , Jiajia Li , Dongmei Zhang , Xiuqi Zhang , Xia Li , Han Yu , Zhanhu Guo , Chuanxin Hou , Gang Lian , Feng Dang . Grain-refining Co_0.85Se@CNT cathode catalyst with promoted Li₂O₂ growth kinetics for lithium-oxygen batteries. Chinese Chemical Letters, 2024, 35(12): 109595-. doi: 10.1016/j.cclet.2024.109595
16. [16]
  Jian Han , Li-Li Zeng , Qin-Yu Fei , Yan-Xiang Ge , Rong-Hui Huang , Fen-Er Chen . Recent advances in remote C(sp³)–H functionalization via chelating group-assisted metal-catalyzed chain-walking reaction. Chinese Chemical Letters, 2024, 35(11): 109647-. doi: 10.1016/j.cclet.2024.109647
17. [17]
  Xue Xin , Qiming Qu , Islam E. Khalil , Yuting Huang , Mo Wei , Jie Chen , Weina Zhang , Fengwei Huo , Wenjing Liu . Hetero-phase zirconia encapsulated with Au nanoparticles for boosting electrocatalytic nitrogen reduction. Chinese Chemical Letters, 2024, 35(5): 108654-. doi: 10.1016/j.cclet.2023.108654
18. [18]
  Tian Yang , Yi Liu , Lina Hua , Yaoyao Chen , Wuqian Guo , Haojie Xu , Xi Zeng , Changhao Gao , Wenjing Li , Junhua Luo , Zhihua Sun . Lead-free hybrid two-dimensional double perovskite with switchable dielectric phase transition. Chinese Chemical Letters, 2024, 35(6): 108707-. doi: 10.1016/j.cclet.2023.108707
19. [19]
  Shu Lin , Kezhen Qi . Phase-dependent lithium-alloying reactions for lithium-metal batteries. Chinese Chemical Letters, 2024, 35(4): 109431-. doi: 10.1016/j.cclet.2023.109431
20. [20]
  Wangyan Hu , Ke Li , Xiangnan Dou , Ning Li , Xiayan Wang . Nano-sized stationary phase packings retained by single-particle frit for microchip liquid chromatography. Chinese Chemical Letters, 2024, 35(4): 108806-. doi: 10.1016/j.cclet.2023.108806

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(540)
HTML views(10)

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