Citation: ZHAN Yongjian, YING Qicong, WU Meiyan, QIAN Renyuan. STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY[J]. Chinese Journal of Polymer Science, ;1991, 9(2): 130-136. shu

STUDIES ON POLY(ETHYLENE TEREPHTHA LATE)-POLY(TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER.Ⅰ.COMPOSITIONAL HOMOGENEITY

Received Date: 23 March 1990

The compositional homogeneity of a poly (ethylene terephthalate)-poly (tetramethylene ether) multiblock copolymer sample with low content of hard segment was examined by GPC, TLC, and solubility method. The copolymer sample was found to have a uniform composition as a function of elution volume over the major portion of sample from GPC method. However within one elution fraction, the copolymer chains, although having the same hydrodynamic volume, may have some difference in composition. Two fractions with different composition were obtained by precipitation in ethanol.Some low molar mass copolymers were also separated by a TLC technique from the copolymer sample.
1. [1]
  Haojie Song , Laiyu Luo , Siyu Wang , Guo Zhang , Baojiang Jiang . Advances in poly(heptazine imide)/poly(triazine imide) photocatalyst. Chinese Chemical Letters, 2024, 35(10): 109347-. doi: 10.1016/j.cclet.2023.109347
2. [2]
  Weijian Zhang , Xianyu Deng , Liying Wang , Jian Wang , Xiuting Guo , Lianggui Huang , Xinyi Wang , Jun Wu , Linjia Jiang . Poly(ferulic acid) nanocarrier enhances chemotherapy sensitivity of acute myeloid leukemia by selectively targeting inflammatory macrophages. Chinese Chemical Letters, 2024, 35(9): 109422-. doi: 10.1016/j.cclet.2023.109422
3. [3]
  Chen Lian , Si-Han Zhao , Hai-Lou Li , Xinhua Cao . A giant Ce-containing poly(tungstobismuthate): Synthesis, structure and catalytic performance for the decontamination of a sulfur mustard simulant. Chinese Chemical Letters, 2024, 35(10): 109343-. doi: 10.1016/j.cclet.2023.109343
4. [4]
  Zhili Li , Qijun Wo , Dongdong Huang , Dezhong Zhou , Lei Guo , Yeqing Mao . Improving gene transfection efficiency of highly branched poly(β-amino ester)s through the in-situ conversion of inactive terminal groups. Chinese Chemical Letters, 2024, 35(8): 109737-. doi: 10.1016/j.cclet.2024.109737
5. [5]
  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
6. [6]
  Hailong He , Wenbing Wang , Wenmin Pang , Chen Zou , Dan Peng . Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization. Chinese Chemical Letters, 2024, 35(7): 109534-. doi: 10.1016/j.cclet.2024.109534
7. [7]
  Xiao Zhu , Yanbing Mo , Jiawei Chen , Gaopan Liu , Yonggang Wang , Xiaoli Dong . A weakly-solvated ether-based electrolyte for fast-charging graphite anode. Chinese Chemical Letters, 2024, 35(8): 109146-. doi: 10.1016/j.cclet.2023.109146
8. [8]
  Shulei Hu , Yu Zhang , Xiong Xie , Luhan Li , Kaixian Chen , Hong Liu , Jiang Wang . Rh(Ⅲ)-catalyzed late-stage C-H alkenylation and macrolactamization for the synthesis of cyclic peptides with unique Trp(C7)-alkene crosslinks. Chinese Chemical Letters, 2024, 35(8): 109408-. doi: 10.1016/j.cclet.2023.109408
9. [9]
  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
10. [10]
  Weichen Zhu , Wei Zuo , Pu Wang , Wei Zhan , Jun Zhang , Lipin Li , Yu Tian , Hong Qi , Rui Huang . Fe-N-C heterogeneous Fenton-like catalyst for the degradation of tetracycline: Fe-N coordination and mechanism studies. Chinese Chemical Letters, 2024, 35(9): 109341-. doi: 10.1016/j.cclet.2023.109341
11. [11]
  Junying Zhang , Ruochen Li , Haihua Wang , Wenbing Kang , Xing-Dong Xu . Photo-induced tunable luminescence from an aggregated amphiphilic ethylene-pyrene derivative in aqueous media. Chinese Chemical Letters, 2024, 35(6): 109216-. doi: 10.1016/j.cclet.2023.109216
12. [12]
  Xiaoxiao Huang , Zhi-Long He , Yangpeng Chen , Lei Li , Zhenyu Yang , Chunyang Zhai , Mingshan Zhu . Novel P-doping-tuned Pd nanoflowers/S,N-GQDs photo-electrocatalyst for high-efficient ethylene glycol oxidation. Chinese Chemical Letters, 2024, 35(6): 109271-. doi: 10.1016/j.cclet.2023.109271

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(442)
HTML views(20)

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