Home

Citation: CHI TSUNG-NAN, LI SHU-FA, CHIEN JEN-YUAN. EFFECTS OF CRYSTALLIZATION AND ORIENTATION ON THE MOLECULAR MOTION IN POLYETHYLENE TEREPHTHALATE FIBRE[J]. Acta Polymerica Sinica, ;1966, 8(2): 68-73. shu

EFFECTS OF CRYSTALLIZATION AND ORIENTATION ON THE MOLECULAR MOTION IN POLYETHYLENE TEREPHTHALATE FIBRE

Received Date: 28 May 1965

The dynamic mechanical properties of polyethylerie terephthalate(PET)monofilament samples with different crystallinity and draw ratio were determined over 100 t0 430°K using the vibrating reed method．In this temperature range two internal friction peaks were observed at 243°K(βc)and 354--383°K(αa)．The βc and αa peaks were shown to be influenced by the variation of crystallinity． From the view point of Takayanagi’s mechanical model of crystalline polymers，the β absorption may be attributed to the local twisting motion of the molecular chains in the frozen noncrystalline phase and in the de-fective region within the crystalline phase，and the αa absorption to the translational mo-tion of the segments in the noncrystalline region．The temperature of the αa peak increa3es with increasing draw ratio，while the βc peak remains unchanged．This suggests that the stretching of PET fibre would mainly change the interchain interactions in the noncrystalline region．Takayanagi’s method of determining the crystallinity of PET samples from the loss moduli of βc and αa peaks was confirmed for the fibre samples．
1. [1]
  Shiyi Chen , Jialong Fu , Jianping Qiu , Guoju Chang , Shiyou Hao . Waste medical mask-derived carbon quantum dots enhance the photocatalytic degradation of polyethylene terephthalate (PET) over BiOBr/g-C₃N₄ S-scheme heterojunction. Acta Physico-Chimica Sinica, 2026, 42(1): 100135-0. doi: 10.1016/j.actphy.2025.100135
2. [2]
  Jianding LI , Junyang FENG , Huimin REN , Gang LI . Proton conductive properties of a Hf(Ⅳ)-based metal-organic framework built by 2,5-dibromophenyl-4,6-dicarboxylic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1094-1100. doi: 10.11862/CJIC.20240464
3. [3]
  Lifang HE , Wenjie TANG , Yaoze LUO , Mingsheng LIANG , Jianxin TANG , Yuxuan WU , Fuxing ZHANG , Xiaoming ZHU . Synthesis, structure, and anticancer activity of two dialkyltin complexes constructed based on 2, 2′-bipyridin-6, 6′-dicarboxylic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1601-1609. doi: 10.11862/CJIC.20250012
4. [4]
  Yanhui Guo , Li Wei , Zhonglin Wen , Chaorong Qi , Huanfeng Jiang . Recent Progress on Conversion of Carbon Dioxide into Carbamates. Acta Physico-Chimica Sinica, 2024, 40(4): 2307004-0. doi: 10.3866/PKU.WHXB202307004
5. [5]
  Ling Liu , Haibin Wang , Genrong Qiang . Curriculum Ideological and Political Design for the Comprehensive Preparation Experiment of Ethyl Benzoate Synthesized from Benzyl Alcohol. University Chemistry, 2024, 39(2): 94-98. doi: 10.3866/PKU.DXHX202304080
6. [6]
  Xiaoling LUO , Pintian ZOU , Xiaoyan WANG , Zheng LIU , Xiangfei KONG , Qun TANG , Sheng WANG . Synthesis, crystal structures, and properties of lanthanide metal-organic frameworks based on 2, 5-dibromoterephthalic acid ligand. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1143-1150. doi: 10.11862/CJIC.20230271
7. [7]
  Lirui Shen , Kun Liu , Ying Yang , Dongwan Li , Wengui Chang . Synthesis and Application of Decanedioic Acid-N-Hydroxysuccinimide Ester: Exploration of Teaching Reform in Comprehensive Applied Chemistry Experiment. University Chemistry, 2024, 39(8): 212-220. doi: 10.3866/PKU.DXHX202312035
8. [8]
  Xiaoning TANG , Junnan LIU , Xingfu YANG , Jie LEI , Qiuyang LUO , Shu XIA , An XUE . Effect of sodium alginate-sodium carboxymethylcellulose gel layer on the stability of Zn anodes. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1452-1460. doi: 10.11862/CJIC.20240191
9. [9]
  Yanglin Jiang , Mingqing Chen , Min Liang , Yige Yao , Yan Zhang , Peng Wang , Jianping Zhang . Experimental and Theoretical Investigations of Solvent Polarity Effect on ESIPT Mechanism in 4′-N,N-diethylamino-3-hydroxybenzoflavone. Acta Physico-Chimica Sinica, 2025, 41(2): 100012-0. doi: 10.3866/PKU.WHXB202309027
10. [10]
  Xiaoyang Li , Xiaowei Huang , Yimeng Zhang , Huan Liu , Shao Jin , Junpeng Zhuang . Comprehensive Chemical Experiments on the Synthesis of 1,3-Dibromo-5,5-Dimethylhydantoin and Its Application as a Brominating Reagent. University Chemistry, 2025, 40(7): 286-293. doi: 10.12461/PKU.DXHX202408035
11. [11]
  Qi Wang , Yicong Gao , Feng Lu , Quli Fan . Preparation and Performance Characterization of the Second Near-Infrared Phototheranostic Probe: A New Design and Teaching Practice of Polymer Chemistry Comprehensive Experiment. University Chemistry, 2024, 39(11): 342-349. doi: 10.12461/PKU.DXHX202404141
12. [12]
  Kexin Feng , Jie Zhang , Yujia Sun , Qiong Ai , Longchun Li . 乙酰二茂铁和二茂铁甲酰丙酮的合成、纯化及表征. University Chemistry, 2025, 40(8): 307-314. doi: 10.12461/PKU.DXHX202409045
13. [13]
  Chengqian Mao , Yanghan Chen , Haotong Bai , Junru Huang , Junpeng Zhuang . Photodimerization of Styrylpyridinium Salt and Its Application in Silk Screen Printing. University Chemistry, 2024, 39(5): 354-362. doi: 10.3866/PKU.DXHX202312014
14. [14]
  Min LIU , Huapeng RUAN , Zhongtao FENG , Xue DONG , Haiyan CUI , Xinping WANG . Neutral boron-containing radical dimers. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 123-130. doi: 10.11862/CJIC.20240362
15. [15]
  Xiaofei Liu , He Wang , Li Tao , Weimin Ren , Xiaobing Lu , Wenzhen Zhang . Electrocarboxylation of Benzylic Phosphates and Phosphinates with Carbon Dioxide. Acta Physico-Chimica Sinica, 2024, 40(9): 2307008-0. doi: 10.3866/PKU.WHXB202307008
16. [16]
  Yiping HUANG , Liqin TANG , Yufan JI , Cheng CHEN , Shuangtao LI , Jingjing HUANG , Xuechao GAO , Xuehong GU . Hollow fiber NaA zeolite membrane for deep dehydration of ethanol solvent by vapor permeation. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 225-234. doi: 10.11862/CJIC.20240224
17. [17]
  Shuying Zhu , Shuting Wu , Ou Zheng . Improvement and Expansion of the Experiment for Determining the Rate Constant of the Saponification Reaction of Ethyl Acetate. University Chemistry, 2024, 39(4): 107-113. doi: 10.3866/PKU.DXHX202310117
18. [18]
  Jiaxin Su , Jiaqi Zhang , Shuming Chai , Yankun Wang , Sibo Wang , Yuanxing Fang . Optimizing Poly(heptazine imide) Photoanodes Using Binary Molten Salt Synthesis for Water Oxidation Reaction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408012-0. doi: 10.3866/PKU.WHXB202408012
19. [19]
  Zhen FAN , Jiayan WANG , Wenhao ZHU , Xiuchun ZHANG , Yang WANG , Hao LI , Zeyuan WANG , Songzhi ZHENG , Weihai SUN . Fabrication of CsPbBr₃ perovskite solar cells using buried polyvinylidene fluorideinterface modification method. Chinese Journal of Inorganic Chemistry, 2025, 41(12): 2464-2478. doi: 10.11862/CJIC.20250191
20. [20]
  Nan Xiao , Fang Sun . 二芳基硫醚化合物的构建及应用. University Chemistry, 2025, 40(6): 360-363. doi: 10.12461/PKU.DXHX202407099

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(150)
HTML views(1)

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