Citation: . STRUCTURAL ANALYSIS OF PEKEKK(T/I) USING WAXD, IMAGING PLATES AND SAXS*[J]. Chinese Journal of Polymer Science, ;2004, 22(4): 379-387. shu

STRUCTURAL ANALYSIS OF PEKEKK(T/I) USING WAXD, IMAGING PLATES AND SAXS*

Received Date: 14 April 2003
Revised Date: 29 May 2003

Structures and crystal form transition of the novel aryl ether ketone polymer containing meta-phenylene linkage:PEKEKK(T/I) were investigated by wide angle X-ray diffraction (WAXD), imaging plates (IPs) and small angle X-ray scattering (SAXS). The energy of activation of the decomposition reaction and degree of crystallinity of PEKEKK(T/I) were determined by WAXD and thermo-gravimetric analysis (TGA), respectively. Results obtained from WAXD and IPs show that crystal forms Ⅰ and Ⅱ coexist in the PEKEKK(T/I) samples isothermally cold crystallized in the temperature range from 180℃ to 240℃ and only form Ⅰ occurs in PEKEKK(TTI) samples isothermally cold crystallized at 270℃ . The radius of gyration (Rg), thickness of microregions with electron-density fluctuations (E) and distribution of particle sizes were investigated by SAXS.
1. [1]
  Huamei Zhang , Jingjing Liu , Mingyue Li , Shida Ma , Xucong Zhou , Aixia Meng , Weina Han , Jin Zhou . Imaging polarity changes in pneumonia and lung cancer using a lipid droplet-targeted near-infrared fluorescent probe. Chinese Chemical Letters, 2024, 35(12): 110020-. doi: 10.1016/j.cclet.2024.110020
2. [2]
  Bohan Chen , Liming Gong , Jing Feng , Mingji Jin , Liqing Chen , Zhonggao Gao , Wei Huang . Research advances of nanoparticles for CAR-T therapy in solid tumors. Chinese Chemical Letters, 2024, 35(9): 109432-. doi: 10.1016/j.cclet.2023.109432
3. [3]
  Dongmei Yao , Junsheng Zheng , Liming Jin , Xiaomin Meng , Zize Zhan , Runlin Fan , Cong Feng , Pingwen Ming . Effect of surface oxidation on the interfacial and mechanical properties in graphite/epoxy composites composite bipolar plates. Chinese Chemical Letters, 2024, 35(11): 109382-. doi: 10.1016/j.cclet.2023.109382
4. [4]
  Xueling Yu , Lixing Fu , Tong Wang , Zhixin Liu , Na Niu , Ligang Chen . Multivariate chemical analysis: From sensors to sensor arrays. Chinese Chemical Letters, 2024, 35(7): 109167-. doi: 10.1016/j.cclet.2023.109167
5. [5]
  Ya-Wen Zhang , Ming-Ming Gan , Li-Ying Sun , Ying-Feng Han . Supramolecular dinuclear silver(I) and gold(I) tetracarbene metallacycles and fluorescence sensing of penicillamine. Chinese Journal of Structural Chemistry, 2024, 43(9): 100356-100356. doi: 10.1016/j.cjsc.2024.100356
6. [6]
  Neng Shi , Haonan Jia , Jixiang Zhang , Pengyu Lu , Chenglong Cai , Yixin Zhang , Liqiang Zhang , Nongyue He , Weiran Zhu , Yan Cai , Zhangqi Feng , Ting Wang . Accurate expression of neck motion signal by piezoelectric sensor data analysis. Chinese Chemical Letters, 2024, 35(9): 109302-. doi: 10.1016/j.cclet.2023.109302
7. [7]
  Yuxin Li , Chengbin Liu , Qiuju Li , Shun Mao . Fluorescence analysis of antibiotics and antibiotic-resistance genes in the environment: A mini review. Chinese Chemical Letters, 2024, 35(10): 109541-. doi: 10.1016/j.cclet.2024.109541
8. [8]
  Zhiwei Zhong , Yanbin Huang , Wantai Yang . A simple photochemical method for surface fluorination using perfluoroketones. Chinese Chemical Letters, 2024, 35(5): 109339-. doi: 10.1016/j.cclet.2023.109339
9. [9]
  Nianqiang Jiang , Yiqiang Ou , Yanpeng Zhu , Dingyong Zhong , Jiaobing Wang . Assembly of fullerenes using a highly preorganized janusarene. Chinese Chemical Letters, 2025, 36(4): 110004-. doi: 10.1016/j.cclet.2024.110004
10. [10]
  Yin-Hang Chai , Li-Long Dang . New structural breakthrough and topological transformation of homogeneous metalla[4]catenane compounds. Chinese Journal of Structural Chemistry, 2024, 43(10): 100322-100322. doi: 10.1016/j.cjsc.2024.100322
11. [11]
  Yi Li , Zhaoxiang Cao , Peng Liu , Xia Wu , Dongju Zhang . Revealing the Coloration and Color Change Mechanisms of the Eriochrome Black T Indicator through Computational Chemistry and UV-Visible Absorption Spectroscopy. University Chemistry, 2025, 40(3): 132-139. doi: 10.12461/PKU.DXHX202405154
12. [12]
  Pengyang FAN , Shan FAN , Qinjin DAI , Xiaoying ZHENG , Wei DONG , Mengxue WANG , Xiaoxiao HUANG , Yong ZHANG . Preparation and performance of rich 1T-MoS₂ nanosheets for high-performance aqueous zinc ion battery cathode materials. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 675-682. doi: 10.11862/CJIC.20240339
13. [13]
  Zhipeng Wan , Hao Xu , Peng Wu . Selective oxidation using in-situ generated hydrogen peroxide over titanosilicates. Chinese Journal of Structural Chemistry, 2024, 43(6): 100298-100298. doi: 10.1016/j.cjsc.2024.100298
14. [14]
  Dongpu Wu , Zheng Yang , Yuchen Xia , Lulu Wu , Yingxia Zhou , Caoyuan Niu , Puhui Xie , Xin Zheng , Zhanqi Cao . Surface controllable wettability using amphiphilic rotaxane molecular shuttles. Chinese Chemical Letters, 2025, 36(2): 110353-. doi: 10.1016/j.cclet.2024.110353
15. [15]
  Tian Feng , Yun-Ling Gao , Di Hu , Ke-Yu Yuan , Shu-Yi Gu , Yao-Hua Gu , Si-Yu Yu , Jun Xiong , Yu-Qi Feng , Jie Wang , Bi-Feng Yuan . Chronic sleep deprivation induces alterations in DNA and RNA modifications by liquid chromatography-mass spectrometry analysis. Chinese Chemical Letters, 2024, 35(8): 109259-. doi: 10.1016/j.cclet.2023.109259
16. [16]
  Cheng Guo , Xiaoxiao Zhang , Xiujuan Hong , Yiqiu Hu , Lingna Mao , Kezhi Jiang . Graphene as adsorbent for highly efficient extraction of modified nucleosides in urine prior to liquid chromatography-tandem mass spectrometry analysis. Chinese Chemical Letters, 2024, 35(4): 108867-. doi: 10.1016/j.cclet.2023.108867
17. [17]
  Keqiang Shi , Xiujuan Hong , Dongyan Xu , Tao Pan , Huiwen Wang , Hongru Feng , Cheng Guo , Yuanjiang Pan . Analysis of RNA modifications in peripheral white blood cells from breast cancer patients by mass spectrometry. Chinese Chemical Letters, 2025, 36(3): 110079-. doi: 10.1016/j.cclet.2024.110079
18. [18]
  Xueqi Zhang , Han Gao , Jianan Xu , Min Zhou . Polyelectrolyte-functionalized carbon nanocones enable rapid and accurate analysis of Ag nanoparticle colloids. Chinese Chemical Letters, 2025, 36(4): 110148-. doi: 10.1016/j.cclet.2024.110148
19. [19]
  Jing-Jing Zhang , Lujun Lou , Rui Lv , Jiahui Chen , Yinlong Li , Guangwei Wu , Lingchao Cai , Steven H. Liang , Zhen Chen . Recent advances in photochemistry for positron emission tomography imaging. Chinese Chemical Letters, 2024, 35(8): 109342-. doi: 10.1016/j.cclet.2023.109342
20. [20]
  Shihong Wu , Ronghui Zhou , Hang Zhao , Peng Wu . Sonoafterglow luminescence for in vivo deep-tissue imaging. Chinese Chemical Letters, 2024, 35(10): 110026-. doi: 10.1016/j.cclet.2024.110026

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(606)
HTML views(8)

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