Citation: . POLYMER CHAIN DIFFUSION AT A TEMPERATURE BELOW ITS BULK GLASS TRANSITION TEMPERATURE*[J]. Chinese Journal of Polymer Science, ;2003, 21(2): 141-146. shu

POLYMER CHAIN DIFFUSION AT A TEMPERATURE BELOW ITS BULK GLASS TRANSITION TEMPERATURE*

Received Date: 31 August 2002

In this study, it was examined whether the dynamics of polymer chains at a surface is different from that in thebulk, and if so, to what extent they differ in terms of surface glass transition temperature and diffusion coefficient. Obtainedresults clearly indicate that surface chains can travel for a relatively large distance in comparison with the characteristiclength scale of usual segmental motion even at a temperature below its bulk glass transition temperature, Tgb. This isconsistent with our previous results that the surface glass transition temperature is much lower than the correspoding Tgb.Also,it was experimentally revealed that there was a gradient of molecular motion in the surface region.
1. [1]
  Zhiqing Ge , Zuxiong Pan , Shuo Yan , Baoying Zhang , Xiangyu Shen , Mozhen Wang , Xuewu Ge . Novel high-temperature thermochromic polydiacetylene material and its application as thermal indicator. Chinese Chemical Letters, 2024, 35(11): 109850-. doi: 10.1016/j.cclet.2024.109850
2. [2]
  Ying-Yu Zhang , Jia-Qi Luo , Yan Han , Wan-Ying Zhang , Yi Zhang , Hai-Feng Lu , Da-Wei Fu . Bistable switch molecule DPACdCl₄ showing four physical channels and high phase transition temperature. Chinese Chemical Letters, 2025, 36(1): 109530-. doi: 10.1016/j.cclet.2024.109530
3. [3]
  Changlin Su , Wensheng Cai , Xueguang Shao . Water as a probe for the temperature-induced self-assembly transition of an amphiphilic copolymer. Chinese Chemical Letters, 2025, 36(4): 110095-. doi: 10.1016/j.cclet.2024.110095
4. [4]
  Zeyin Chen , Jiaju Shi , Yusheng Zhou , Peng Zhang , Guodong Liang . Polymer microparticles with ultralong room-temperature phosphorescence for visual and quantitative detection of oxygen through phosphorescence image and lifetime analysis. Chinese Chemical Letters, 2025, 36(5): 110629-. doi: 10.1016/j.cclet.2024.110629
5. [5]
  Jiuli Xia , Shiqian Du , Liang Zhang , Peng Ye , Huasheng Lin , Shanhu Chen , Yangyang Zhou , Miaoyu Li , Yabin Xu , Qie Liu , Tehua Wang , Peng Long , Li Tao , Shuangyin Wang . Graphene-encapsulated ruthenium as efficient electrocatalyst for high-temperature polymer electrolyte membrane fuel cells. Chinese Chemical Letters, 2026, 37(4): 110754-. doi: 10.1016/j.cclet.2024.110754
6. [6]
  Dongyang Chen , Xiaoxu Liu , Haonan Chen , Yaru Wang , Jing Li , Jiaming Sun , Xiaofeng Wang , Qiong Liu . Defect engineering using Ti-doped calcium niobate nanosheets in polymer-based dielectrics for high temperature capacitance. Chinese Chemical Letters, 2026, 37(9): 111436-. doi: 10.1016/j.cclet.2025.111436
7. [7]
  Yifan LIU , Zhan ZHANG , Rongmei ZHU , Ziming QIU , Huan PANG . A three-dimensional flower-like Cu-based composite and its low-temperature calcination derivatives for efficient oxygen evolution reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 979-990. doi: 10.11862/CJIC.20240008
8. [8]
  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
9. [9]
  Lisi Xu , Maosheng Li , Anqi He , Haijiao Xie , Kuirong Deng . F/N interface engineering of nonflammable polymer electrolyte for wide-temperature quasi-solid-state Li metal batteries. Chinese Chemical Letters, 2026, 37(2): 111815-. doi: 10.1016/j.cclet.2025.111815
10. [10]
  Wanting CHEN , Chufei MIAO , Yan LIU , Bobi ZHENG , Xiaoyu ZHENG , Han XU , Jumei TIAN . Syntheses, characterization, and luminescence properties of Yb(Ⅲ)-based one-dimensional chain coordination polymer. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1672-1680. doi: 10.11862/CJIC.20250013
11. [11]
  Dian-Xue Ma , Yu-Wu Zhong . Achieving highly-efficient room-temperature phosphorescence with a nylon matrix. Chinese Journal of Structural Chemistry, 2024, 43(9): 100391-100391. doi: 10.1016/j.cjsc.2024.100391
12. [12]
  Ping Liu , Fei Yu . Covalent organic framework ionomers for medium-temperature fuel cells. Chinese Journal of Structural Chemistry, 2025, 44(4): 100465-100465. doi: 10.1016/j.cjsc.2024.100465
13. [13]
  Qiong Su , Chao Hu , Sichan Li , Wenjun Huang , Jianyu Dong , Ren Song , Lan Xu , Guozhao Fang . Sodium-ion batteries at low temperature: Storage mechanism and modification strategies. Chinese Chemical Letters, 2025, 36(12): 111267-. doi: 10.1016/j.cclet.2025.111267
14. [14]
  Xinyu Zeng , Zhuofan Zeng , Qingqing Hu , Kejun Liu , Lei Ming , Bei Cheng , Wang Wang , Guoqiang Luo , Shaowen Cao . Hierarchical Pt/NiO hollow nanofibers for catalytic oxidation of HCHO at room temperature. Chinese Journal of Structural Chemistry, 2025, 44(6): 100575-100575. doi: 10.1016/j.cjsc.2025.100575
15. [15]
  Xiaosa Zhang , Shanghao Zhou , Xiaomin Chen , Xu Xu , Xiaoyan Shi , Zhiming Zhou , Yun Wan , Xinhui Zeng , Xunzhu Zhou , Xiang Chen , Shu-Lei Chou , Lin Li . Organic liquid electrolyte for low-temperature sodium-ion batteries. Chinese Chemical Letters, 2026, 37(10): 111533-. doi: 10.1016/j.cclet.2025.111533
16. [16]
  Pai Yu , Chenchen Wang , Hualin Lin , Sheng Han . A universal strategy based carbonized polymer dots self-assembled supramolecular oleogel lubricants via chain entanglement for friction reduction and anti-wear. Chinese Chemical Letters, 2026, 37(5): 111931-. doi: 10.1016/j.cclet.2025.111931
17. [17]
  Na Wang , Wang Luo , Huaiyi Shen , Huakai Li , Zejiang Xu , Zhiyuan Yue , Chao Shi , Hengyun Ye , Leping Miao . Crystal engineering regulation achieving inverse temperature symmetry breaking ferroelasticity in a cationic displacement type hybrid perovskite system. Chinese Chemical Letters, 2024, 35(5): 108696-. doi: 10.1016/j.cclet.2023.108696
18. [18]
  Kun Zhang , Ni Dan , Dan-Dan Ren , Ruo-Yu Zhang , Xiaoyan Lu , Ya-Pan Wu , Li-Lei Zhang , Hong-Ru Fu , Dong-Sheng Li . A small D-A molecule with highly heat-resisting room temperature phosphorescence for white emission and anti-counterfeiting. Chinese Journal of Structural Chemistry, 2024, 43(3): 100244-100244. doi: 10.1016/j.cjsc.2024.100244
19. [19]
  Linjing Li , Wenlai Xu , Jianyong Ning , Yaping Zhong , Chuyue Zhang , Jiane Zuo , Zhicheng Pan . Revealing the intrinsic mechanisms for accelerating nitrogen removal efficiency in the Anammox reactor by adding Fe(II) at low temperature. Chinese Chemical Letters, 2024, 35(8): 109243-. doi: 10.1016/j.cclet.2023.109243
20. [20]
  Shiqi Peng , Yongfang Rao , Tan Li , Yufei Zhang , Jun-ji Cao , Shuncheng Lee , Yu Huang . Regulating the electronic structure of Ir single atoms by ZrO₂ nanoparticles for enhanced catalytic oxidation of formaldehyde at room temperature. Chinese Chemical Letters, 2024, 35(7): 109219-. doi: 10.1016/j.cclet.2023.109219

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1784)
HTML views(49)

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