Citation: SONG Rui, LIN Xin, CHEN Jing, GAO Jingui, FAN Qingrong. THE EFFECT OF HOT DRAWN ON THE PHYSICAL AGING OF ATACTIC POLYSTYRENE*[J]. Chinese Journal of Polymer Science, ;1998, 16(2): 176-184. shu

THE EFFECT OF HOT DRAWN ON THE PHYSICAL AGING OF ATACTIC POLYSTYRENE*

Received Date: 28 April 1997

The physical aging behavior of atactic polystyrene (aPS) films achievedunder different drawing conditions has been studied by optical birefringence and modulatedifferential scanning calorimeter (m.d.s.c.). The results show that on annealing at specifictemperature below glass transition temperatue (Tg), the enthalpy relaxation (△H) and Tg decrease with increasing of birefringence (△n). On the other hand, the effect of moleculardraw ratio (MDR) is confusing: △H and Tg decrease with increasing of MDR in the early stage of aging,but the MDR's effect become unobvious with the development of aging. It may be concluded that the ordered domain generated by the drawing below or above glass transition temperature will affect the development of physical aging behavior.The viewpoint of cohesional entanglement is used to account for the above observations.
1. [1]
  Zihong Li , Jie Cheng , Ping Huang , Guoliang Wu , Weiying Lin . Activatable photoacoustic bioprobe for visual detection of aging in vivo. Chinese Chemical Letters, 2024, 35(4): 109153-. doi: 10.1016/j.cclet.2023.109153
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]
  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
4. [4]
  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
5. [5]
  Yan Wang , Huixin Chen , Fuda Yu , Shanyue Wei , Jinhui Song , Qianfeng He , Yiming Xie , Miaoliang Huang , Canzhong Lu . Oxygen self-doping pyrolyzed polyacrylic acid as sulfur host with physical/chemical adsorption dual function for lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(7): 109001-. doi: 10.1016/j.cclet.2023.109001
6. [6]
  Fanxin Kong , Hongzhi Wang , Huimei Duan . Inhibition effect of sulfation on Pt/TiO2 catalysts in methane combustion. Chinese Journal of Structural Chemistry, 2024, 43(5): 100287-100287. doi: 10.1016/j.cjsc.2024.100287
7. [7]
  Min Fu , Pan He , Sen Zhou , Wenqiang Liu , Bo Ma , Shiying Shang , Yaohao Li , Ruihan Wang , Zhongping Tan . An unexpected stereochemical effect of thio-substituted Asp in native chemical ligation. Chinese Chemical Letters, 2024, 35(8): 109434-. doi: 10.1016/j.cclet.2023.109434
8. [8]
  Yixia Zhang , Caili Xue , Yunpeng Zhang , Qi Zhang , Kai Zhang , Yulin Liu , Zhaohui Shan , Wu Qiu , Gang Chen , Na Li , Hulin Zhang , Jiang Zhao , Da-Peng Yang . Cocktail effect of ionic patch driven by triboelectric nanogenerator for diabetic wound healing. Chinese Chemical Letters, 2024, 35(8): 109196-. doi: 10.1016/j.cclet.2023.109196
9. [9]
  Yuan Dong , Mutian Ma , Zhenyang Jiao , Sheng Han , Likun Xiong , Zhao Deng , Yang Peng . Effect of electrolyte cation-mediated mechanism on electrocatalytic carbon dioxide reduction. Chinese Chemical Letters, 2024, 35(7): 109049-. doi: 10.1016/j.cclet.2023.109049
10. [10]
  Botao Gao , He Qi , Hui Liu , Jun Chen . Role of polarization evolution in the hysteresis effect of Pb-based antiferroelecrtics. Chinese Chemical Letters, 2024, 35(4): 108598-. doi: 10.1016/j.cclet.2023.108598
11. [11]
  Xin Huang , Yi Zhao , Wanzhen Liang . Vibronic coupling effect on intersystem crossing rates of TADF emitters. Chinese Journal of Structural Chemistry, 2024, 43(6): 100278-100278. doi: 10.1016/j.cjsc.2024.100278
12. [12]
  Cunjun Li , Wencong Liu , Xianlei Chen , Liang Li , Shenyu Lan , Mingshan Zhu . Adsorption and activation of peroxymonosulfate on BiOCl for carbamazepine degradation: The role of piezoelectric effect. Chinese Chemical Letters, 2024, 35(10): 109652-. doi: 10.1016/j.cclet.2024.109652
13. [13]
  Ziyou Zhang , Te Ji , Hongliang Dong , Zhiqiang Chen , Zhi Su . Effect of coordination restriction on pressure-induced fluorescence evolution. Chinese Chemical Letters, 2024, 35(12): 109542-. doi: 10.1016/j.cclet.2024.109542
14. [14]
  Shaohua Zhang , Xiaojuan Dai , Wei Hao , Liyao Liu , Yingqiao Ma , Ye Zou , Jia Zhu , Chong-an Di . A first-principles study of the Nernst effect in doped polymer. Chinese Chemical Letters, 2024, 35(12): 109837-. doi: 10.1016/j.cclet.2024.109837
15. [15]
  Xingxing Jiang , Yuxin Zhao , Yan Kong , Jianju Sun , Shangzhao Feng , Xin Lu , Qi Hu , Hengpan Yang , Chuanxin He . Support effect and confinement effect of porous carbon loaded tin dioxide nanoparticles in high-performance CO₂ electroreduction towards formate. Chinese Chemical Letters, 2025, 36(1): 109555-. doi: 10.1016/j.cclet.2024.109555
16. [16]
  Mingxin Song , Lijing Xie , Fangyuan Su , Zonglin Yi , Quangui Guo , Cheng-Meng Chen . New insights into the effect of hard carbons microstructure on the diffusion of sodium ions into closed pores. Chinese Chemical Letters, 2024, 35(6): 109266-. doi: 10.1016/j.cclet.2023.109266
17. [17]
  Chaochao Wei , Ru Wang , Zhongkai Wu , Qiyue Luo , Ziling Jiang , Liang Ming , Jie Yang , Liping Wang , Chuang Yu . Revealing the size effect of FeS₂ on solid-state battery performances at different operating temperatures. Chinese Chemical Letters, 2024, 35(6): 108717-. doi: 10.1016/j.cclet.2023.108717
18. [18]
  Chenlu Huang , Xinyu Yang , Qingyu Yu , Linhua Zhang , Dunwan Zhu . Gas-generating polymersomes-based amplified photoimmunotherapy for abscopal effect and tumor metastasis inhibition. Chinese Chemical Letters, 2024, 35(6): 109680-. doi: 10.1016/j.cclet.2024.109680
19. [19]
  Junchen Peng , Xue Yin , Dandan Dong , Zhongyuan Guo , Qinqin Wang , Minmin Liu , Fei He , Bin Dai , Chaofeng Huang . Promotion effect of epoxy group neighboring single-atom Cu site on acetylene hydrochlorination. Chinese Chemical Letters, 2024, 35(6): 109508-. doi: 10.1016/j.cclet.2024.109508
20. [20]
  Ting-Ting Huang , Jin-Fa Chen , Juan Liu , Tai-Bao Wei , Hong Yao , Bingbing Shi , Qi Lin . A novel fused bi-macrocyclic host for sensitive detection of Cr₂O₇²⁻ based on enrichment effect. Chinese Chemical Letters, 2024, 35(7): 109281-. doi: 10.1016/j.cclet.2023.109281

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(548)
HTML views(28)

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