Citation: . MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*[J]. Chinese Journal of Polymer Science, ;1999, 17(2): 145-150. shu

MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*

Received Date: 27 November 1997

By mechanism-transformation (anionic→ cationic) poly(styrene- b-2-ethyl -2-oxazoline) diblockcopolymer, PS-b-PEOx, was synthesized in two steps. The first step is the polymerization of styrene blockcapped with ethylene oxide and its tosylation; the second step is the cationic ring-opening polymerization of2-ethyl-2-oxazoline. The products were thoroughly characterized by various methods, such as 1H-NMR, IR,DMA, TEM and SAXS. The results show that the copolymer obtained possesses high molecular weight and narrow molecular weight distributio.
1. [1]
  Qian Wang , Ting Gao , Xiwen Lu , Hangchao Wang , Minggui Xu , Longtao Ren , Zheng Chang , Wen Liu . Nanophase separated, grafted alternate copolymer styrene-maleic anhydride as an efficient room temperature solid state lithium ion conductor. Chinese Chemical Letters, 2024, 35(7): 108887-. doi: 10.1016/j.cclet.2023.108887
2. [2]
  Tengfei Xuan , Xinyu Zhang , Wei Han , Yidong Huang , Weiwu Ren . Total synthesis of (+)-taberdicatine B and (+)-tabernabovine B. Chinese Chemical Letters, 2025, 36(2): 109816-. doi: 10.1016/j.cclet.2024.109816
3. [3]
  Ping Wang , Tianbao Zhang , Zhenxing Li . Reconstruction mechanism of Cu surface in CO2 reduction process. Chinese Journal of Structural Chemistry, 2024, 43(8): 100328-100328. doi: 10.1016/j.cjsc.2024.100328
4. [4]
  Yudi Cheng , Xiao Wang , Jiao Chen , Zihan Zhang , Jiadong Ou , Mengyao She , Fulin Chen , Jianli Li . A near-infrared fluorescent probe for visualizing transformation pathway of Cys/Hcy and H₂S and its applications in living system. Chinese Chemical Letters, 2024, 35(5): 109156-. doi: 10.1016/j.cclet.2023.109156
5. [5]
  Zhenhao Wang , Yuliang Tang , Ruyu Li , Shuai Tian , Yu Tang , Dehai Li . Bioinspired synthesis of cochlearol B and ganocin A. Chinese Chemical Letters, 2024, 35(7): 109247-. doi: 10.1016/j.cclet.2023.109247
6. [6]
  Yubang Li , Xixi Hu , Daiqian Xie . The microscopic formation mechanism of O + H2 products from photodissociation of H2O. Chinese Journal of Structural Chemistry, 2024, 43(5): 100274-100274. doi: 10.1016/j.cjsc.2024.100274
7. [7]
  Xin Li , Wanting Fu , Ruiqing Guan , Yue Yuan , Qinmei Zhong , Gang Yao , Sheng-Tao Yang , Liandong Jing , Song Bai . Nucleophiles promotes the decomposition of electrophilic functional groups of tetracycline in ZVI/H₂O₂ system: Efficiency and mechanism. Chinese Chemical Letters, 2024, 35(10): 109625-. doi: 10.1016/j.cclet.2024.109625
8. [8]
  Liyong Ding , Zhenhua Pan , Qian Wang . 2D photocatalysts for hydrogen peroxide synthesis. Chinese Chemical Letters, 2024, 35(12): 110125-. doi: 10.1016/j.cclet.2024.110125
9. [9]
  Teng-Yu Huang , Junliang Sun , De-Xian Wang , Qi-Qiang Wang . Recent progress in chiral zeolites: Structure, synthesis, characterization and applications. Chinese Chemical Letters, 2024, 35(12): 109758-. doi: 10.1016/j.cclet.2024.109758
10. [10]
  Ming-Zhen Li , Yang Zhang , Kun Li , Ya-Nan Shang , Yi-Zhen Zhang , Yu-Jiao Kan , Zhi-Yang Jiao , Yu-Yuan Han , Xiao-Qiang Cao . In situ regeneration of catalyst for Fenton-like degradation by photogenerated electron transportation: Characterization, performance and mechanism comparison. Chinese Chemical Letters, 2025, 36(1): 109885-. doi: 10.1016/j.cclet.2024.109885
11. [11]
  Hong Zhang , Cui-Ping Li , Li-Li Wang , Zhuo-Da Zhou , Wen-Sen Li , Ling-Yi Kong , Ming-Hua Yang . Asperochones A and B, two antimicrobial aromatic polyketides from the endophytic fungus Aspergillus sp. MMC-2. Chinese Chemical Letters, 2024, 35(9): 109351-. doi: 10.1016/j.cclet.2023.109351
12. [12]
  Zhenchun Yang , Bixiao Guo , Zhenyu Hu , Kun Wang , Jiahao Cui , Lina Li , Chun Hu , Yubao Zhao . Molecular engineering towards dual surface local polarization sites on poly(heptazine imide) framework for boosting H₂O₂ photo-production. Chinese Chemical Letters, 2024, 35(8): 109251-. doi: 10.1016/j.cclet.2023.109251
13. [13]
  Hao Lv , Zhi Li , Peng Yin , Ping Wan , Mingshan Zhu . Recent progress on non-metallic carbon nitride for the photosynthesis of H₂O₂: Mechanism, modification and in-situ applications. Chinese Chemical Letters, 2025, 36(1): 110457-. doi: 10.1016/j.cclet.2024.110457
14. [14]
  Xiao Xiao , Biao Chen , Jia-Wei Li , Jun-Bo Zheng , Xu Wang , Hang Zhao , Fen-Er Chen . Nitrite-catalyzed economic and sustainable bromocyclization of tryptamines/tryptophols to access hexahydropyrrolo[2,3-b]indoles/tetrahydrofuroindolines in batch and flow. Chinese Chemical Letters, 2024, 35(7): 109280-. doi: 10.1016/j.cclet.2023.109280
15. [15]
  Luyan Shi , Ke Zhu , Yuting Yang , Qinrui Liang , Qimin Peng , Shuqing Zhou , Tayirjan Taylor Isimjan , Xiulin Yang . Phytic acid-derivative Co₂B-CoPO_x coralloidal structure with delicate boron vacancy for enhanced hydrogen generation from sodium borohydride. Chinese Chemical Letters, 2024, 35(4): 109222-. doi: 10.1016/j.cclet.2023.109222
16. [16]
  Hongjin Shi , Guoyin Yin , Xi Lu , Yangyang Li . Stereoselective synthesis of 2-deoxy-α-C-glycosides from glycals. Chinese Chemical Letters, 2024, 35(12): 109674-. doi: 10.1016/j.cclet.2024.109674
17. [17]
  Huixin Chen , Chen Zhao , Hongjun Yue , Guiming Zhong , Xiang Han , Liang Yin , Ding Chen . Unraveling the reaction mechanism of high reversible capacity CuP₂/C anode with native oxidation PO_x component for sodium-ion batteries. Chinese Chemical Letters, 2025, 36(1): 109650-. doi: 10.1016/j.cclet.2024.109650
18. [18]
  Qinwen Zheng , Xin Liu , Lintao Tian , Yi Zhou , Libing Liao , Guocheng Lv . Mechanism of Fenton catalytic degradation of Rhodamine B induced by microwave and Fe₃O₄. Chinese Chemical Letters, 2025, 36(4): 109771-. doi: 10.1016/j.cclet.2024.109771
19. [19]
  Anqiu LIU , Long LIN , Dezhi ZHANG , Junyu LEI , Kefeng WANG , Wei ZHANG , Junpeng ZHUANG , Haijun HAO . Synthesis, structures, and catalytic activity of aluminum and zinc complexes chelated by 2-((2,6-dimethylphenyl)amino)ethanolate. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 791-798. doi: 10.11862/CJIC.20230424
20. [20]
  Kangmin Wang , Liqiu Wan , Jingyu Wang , Chunlin Zhou , Ke Yang , Liang Zhou , Bijin Li . Multifunctional 2-(2′-hydroxyphenyl)benzoxazoles: Ready synthesis, mechanochromism, fluorescence imaging, and OLEDs. Chinese Chemical Letters, 2024, 35(10): 109554-. doi: 10.1016/j.cclet.2024.109554

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(500)
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