Citation: XU Mao, LI Peiji, WANG Ying, LUO Xiaolie, LIU Yan, MA Dezhu. DETERMINATION OF COMPOSITION DISTRIBUTION OF SEGMENTED POLYURETHANES BY THIN LAYER CHROMATOGRAPHYDETERMINATION OF COMPOSITION DISTRIBUTION OF SEGMENTED POLYURETHANES BY THIN LAYER CHROMATOGRAPHY[J]. Chinese Journal of Polymer Science, ;1986, 4(1): 78-83. shu

DETERMINATION OF COMPOSITION DISTRIBUTION OF SEGMENTED POLYURETHANES BY THIN LAYER CHROMATOGRAPHYDETERMINATION OF COMPOSITION DISTRIBUTION OF SEGMENTED POLYURETHANES BY THIN LAYER CHROMATOGRAPHY

Received Date: 19 September 1985

The compositional heterogeneity has been studied for a series of PCL/MDI/BDO segmentedpolyurethanes. Their average hard segment content measured by NMR method was ranging from 17% to 42%. Macromolecules of segmented polyurethanes can be separated according to theircomposition by TLC technique with a mixed solvent of toluene/acetone/ tetrahydrofuran as the devel-oper. A dual wavelength TLC spectrodensitometer was used for quantitative analysis of TLC results,and method for data treatment is proposed to obtain the composition distribution with no need of any reference samples as TLC eluticn standards.The polyurethane samples are found to be heterogeneous in composition,having bimodal distribution curves.
1. [1]
  Bei Li , Zhaoke Zheng . In situ monitoring of the spatial distribution of oxygen vacancies at the single-particle level. Chinese Journal of Structural Chemistry, 2024, 43(10): 100331-100331. doi: 10.1016/j.cjsc.2024.100331
2. [2]
  Jingqi Xin , Shupeng Han , Meichen Zheng , Chenfeng Xu , Zhongxi Huang , Bin Wang , Changmin Yu , Feifei An , Yu Ren . A nitroreductase-responsive nanoprobe with homogeneous composition and high loading for preoperative non-invasive tumor imaging and intraoperative guidance. Chinese Chemical Letters, 2024, 35(7): 109165-. doi: 10.1016/j.cclet.2023.109165
3. [3]
  Lian Sun , Honglei Wang , Ming Ma , Tingting Cao , Leilei Zhang , Xingui Zhou . Shape and composition evolution of Pt and Pt₃M nanocrystals under HCl chemical etching. Chinese Chemical Letters, 2024, 35(9): 109188-. doi: 10.1016/j.cclet.2023.109188
4. [4]
  Hang Meng , Bicheng Zhu , Ruolun Sun , Zixuan Liu , Shaowen Cao , Kan Zhang , Jiaguo Yu , Jingsan Xu . Dynamic photoluminescence switching of carbon nitride thin films for anticounterfeiting and encryption. Chinese Journal of Structural Chemistry, 2024, 43(10): 100410-100410. doi: 10.1016/j.cjsc.2024.100410
5. [5]
  Kexin Yuan , Yulei Liu , Haoran Feng , Yi Liu , Jun Cheng , Beiyang Luo , Qinglian Wu , Xinyu Zhang , Ying Wang , Xian Bao , Wanqian Guo , Jun Ma . Unlocking the potential of thin-film composite reverse osmosis membrane performance: Insights from mass transfer modeling. Chinese Chemical Letters, 2024, 35(5): 109022-. doi: 10.1016/j.cclet.2023.109022
6. [6]
  Ting WANG , Peipei ZHANG , Shuqin LIU , Ruihong WANG , Jianjun ZHANG . A Bi-CP-based solid-state thin-film sensor: Preparation and luminescence sensing for bioamine vapors. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1615-1621. doi: 10.11862/CJIC.20240134
7. [7]
  Yuhao Guo , Na Li , Tingjiang Yan . Tandem catalysis for photoreduction of CO2 into multi-carbon fuels on atomically thin dual-metal phosphochalcogenides. Chinese Journal of Structural Chemistry, 2024, 43(7): 100320-100320. doi: 10.1016/j.cjsc.2024.100320
8. [8]
  Wenhao Chen , Muxuan Wu , Han Chen , Lue Mo , Yirong Zhu . Cu₂Se@C thin film with three-dimensional braided structure as a cathode material for enhanced Cu²⁺ storage. Chinese Chemical Letters, 2024, 35(5): 108698-. doi: 10.1016/j.cclet.2023.108698
9. [9]
  Panke Zhou , Hong Yu , Mun Yin Chee , Tao Zeng , Tianli Jin , Hongling Yu , Shuo Wu , Wen Siang Lew , Xiong Chen . Electron push-pull effects induced performance promotion in covalent organic polymer thin films-based memristor for neuromorphic application. Chinese Chemical Letters, 2024, 35(5): 109279-. doi: 10.1016/j.cclet.2023.109279
10. [10]
  Xuejie Gao , Xinyang Chen , Ming Jiang , Hanyan Wu , Wenfeng Ren , Xiaofei Yang , Runcang Sun . Long-lifespan thin Li anode achieved by dead Li rejuvenation and Li dendrite suppression for all-solid-state lithium batteries. Chinese Chemical Letters, 2024, 35(10): 109448-. doi: 10.1016/j.cclet.2023.109448
11. [11]
  Yue Li , Minghao Fan , Conghui Wang , Yanxun Li , Xiang Yu , Jun Ding , Lei Yan , Lele Qiu , Yongcai Zhang , Longlu Wang . 3D layer-by-layer amorphous MoS_x assembled from [Mo₃S₁₃]^2- clusters for efficient removal of tetracycline: Synergy of adsorption and photo-assisted PMS activation. Chinese Chemical Letters, 2024, 35(9): 109764-. doi: 10.1016/j.cclet.2024.109764
12. [12]
  Min Chen , Boyu Peng , Xuyun Guo , Ye Zhu , Hanying Li . Polyethylene interfacial dielectric layer for organic semiconductor single crystal based field-effect transistors. Chinese Chemical Letters, 2024, 35(4): 109051-. doi: 10.1016/j.cclet.2023.109051
13. [13]
  Xinxiu Yan , Xizhe Huang , Yangyang Liu , Weishang Jia , Hualin Chen , Qi Yao , Tao Chen . Hyperbranched polyamidoamine protective layer with phosphate and carboxyl groups for dendrite-free Zn metal anodes. Chinese Chemical Letters, 2024, 35(10): 109426-. doi: 10.1016/j.cclet.2023.109426
14. [14]
  Yanrui Liu , Paramaguru Ganesan , Peng Gao . Harnessing d-f transition rare earth complexes for single layer white organic light emitting diodes. Chinese Journal of Structural Chemistry, 2024, 43(9): 100369-100369. doi: 10.1016/j.cjsc.2024.100369
15. [15]
  Jing Wang , Zhongliao Wang , Jinfeng Zhang , Kai Dai . Single-layer crystalline triazine-based organic framework photocatalysts with different linking groups for H2O2 production. Chinese Journal of Structural Chemistry, 2023, 42(12): 100202-100202. doi: 10.1016/j.cjsc.2023.100202
16. [16]
  Shuo Zhang , Haitao Liao , Zhi-Qun Liu , Chong Yan , Jia-Qi Huang . Re-evaluating the nano-sized inorganic protective layer on Cu current collector for anode free lithium metal batteries. Chinese Chemical Letters, 2024, 35(7): 109284-. doi: 10.1016/j.cclet.2023.109284
17. [17]
  Fei Jin , Bolin Yang , Xuanpu Wang , Teng Li , Noritatsu Tsubaki , Zhiliang Jin . Facilitating efficient photocatalytic hydrogen evolution via enhanced carrier migration at MOF-on-MOF S-scheme heterojunction interfaces through a graphdiyne (CnH2n-2) electron transport layer. Chinese Journal of Structural Chemistry, 2023, 42(12): 100198-100198. doi: 10.1016/j.cjsc.2023.100198
18. [18]
  Mingjiao Lu , Zhixing Wang , Gui Luo , Huajun Guo , Xinhai Li , Guochun Yan , Qihou Li , Xianglin Li , Ding Wang , Jiexi Wang . Boosting the performance of LiNi_0.90Co_0.06Mn_0.04O₂ electrode by uniform Li₃PO₄ coating via atomic layer deposition. Chinese Chemical Letters, 2024, 35(5): 108638-. doi: 10.1016/j.cclet.2023.108638
19. [19]
  Boyuan Hu , Jian Zhang , Yulin Yang , Yayu Dong , Jiaqi Wang , Wei Wang , Kaifeng Lin , Debin Xia . Dual-functional POM@IL complex modulate hole transport layer properties and interfacial charge dynamics for highly efficient and stable perovskite solar cells. Chinese Chemical Letters, 2024, 35(7): 108933-. doi: 10.1016/j.cclet.2023.108933
20. [20]
  Ziling Jiang , Shaoqing Chen , Chaochao Wei , Ziqi Zhang , Zhongkai Wu , Qiyue Luo , Liang Ming , Long Zhang , Chuang Yu . Enabling superior electrochemical performance of NCA cathode in Li_5.5PS_4.5Cl_1.5-based solid-state batteries with a dual-electrolyte layer. Chinese Chemical Letters, 2024, 35(4): 108561-. doi: 10.1016/j.cclet.2023.108561

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(483)
HTML views(9)

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