Citation: . FTIR STUDIES ON THE MODEL POLYURETHANE HARD SEGMENTS BASED ON A NEW WATERBORNE CHAIN EXTENDER DIMETHYLOL BUTANOIC ACID (DMBA)*[J]. Chinese Journal of Polymer Science, ;2004, 22(3): 225-230. shu

FTIR STUDIES ON THE MODEL POLYURETHANE HARD SEGMENTS BASED ON A NEW WATERBORNE CHAIN EXTENDER DIMETHYLOL BUTANOIC ACID (DMBA)*

Received Date: 16 January 2003
Revised Date: 28 April 2003

Three model polyurethane hard segments based on dimethylol butanoic acid (DMBA) and 1,6-hexane diisocyanate(HDI), toluene diisocyanate (TDI) and 4,4'-diphenylmethane diisocyanate (MDI) were prepared by the solution method.Fourier Infrared (FTIR) spectroscopy was employed to study the H-bonds in these model polyurethanes. The model polyurethane hard segment prepared from HDI and 1,4-butanodiol (BDO) was used for comparison. It was found that the incorporation of the pendent carboxyl through DMBA into the model hard segments weakens the original NH…O = C H-bond but gives more H-bond patterns based on the two H-bond donors, urethane NH and carboxylic OH. The carboxylic dimer is one of the main H-bond types and is stronger than another main H-bond type NH…O=C. In addition, the H-bond in aromatic model hard segments is stronger than that of aliphatic hard segments. The appearance of the free C=O and the fact that almost all N—H is H-bonded suggest that there possibly exist either the third H-bond acceptor or the H-bond formed by one acceptor with two donors.
1. [1]
  Yan-Jia Lin , Qing-Xin Zeng , Xiao-Min Shen , Shou-Tian Zheng , Xin-Xiong Li . Construction of metal cluster-based materials directed by a bifunctional pyridyl tripodal alcohol ligand according to hard and soft acid-base theory. Chinese Journal of Structural Chemistry, 2025, 44(10): 100702-100702. doi: 10.1016/j.cjsc.2025.100702
2. [2]
  Mingxin Song , Lijing Xie , Fangyuan Su , Zonglin Yi , Quangui Guo , Cheng-Meng Chen . New insights into the effect of hard carbons microstructure on the diffusion of sodium ions into closed pores. Chinese Chemical Letters, 2024, 35(6): 109266-. doi: 10.1016/j.cclet.2023.109266
3. [3]
  Chen Chen , Jinzhou Zheng , Chaoqin Chu , Qinkun Xiao , Chaozheng He , Xi Fu . An effective method for generating crystal structures based on the variational autoencoder and the diffusion model. Chinese Chemical Letters, 2025, 36(4): 109739-. doi: 10.1016/j.cclet.2024.109739
4. [4]
  Bo-Ran Chang , Lin Deng , Qing-Lian Wu , Wan-Qian Guo , Hui-Ying Xue . A review: Carbon-based materials as effective additives in anaerobic fermentation, focusing on microbial chain elongation and medium chain fatty acids production. Chinese Chemical Letters, 2025, 36(7): 110411-. doi: 10.1016/j.cclet.2024.110411
5. [5]
  Tao Wei , Jiahao Lu , Pan Zhang , Qi Zhang , Guang Yang , Ruizhi Yang , Daifen Chen , Qian Wang , Yongfu Tang . An intermittent lithium deposition model based on bimetallic MOFs derivatives for dendrite-free lithium anode with ultrahigh areal capacity. Chinese Chemical Letters, 2024, 35(8): 109122-. doi: 10.1016/j.cclet.2023.109122
6. [6]
  Baolei Li , Da Wang , Miao Yu , Chaozheng He , Xue Li , Jing Zhai , Mdmahadi Hasan , Chenxu Zhao , Min Wang , Dingcai Shen . Accelerating multi-objective catalytic material design: A model-based method. Chinese Chemical Letters, 2025, 36(12): 110454-. doi: 10.1016/j.cclet.2024.110454
7. [7]
  Wanting CHEN , Chufei MIAO , Yan LIU , Bobi ZHENG , Xiaoyu ZHENG , Han XU , Jumei TIAN . Syntheses, characterization, and luminescence properties of Yb(Ⅲ)-based one-dimensional chain coordination polymer. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1672-1680. doi: 10.11862/CJIC.20250013
8. [8]
  Xuejia Li , Yang Liu , Jian Wei , Yujia Xiang , Xinruo Wang , Hanchang Wang , Heng Zhang , Bo Lai . New insight into the role of humic acid in Vis/Fe(Ⅲ)/PDS system: Synergistic effects of complexation and photosensitization. Chinese Chemical Letters, 2025, 36(10): 110811-. doi: 10.1016/j.cclet.2024.110811
9. [9]
  Lihang Wang , Mary Li Javier , Chunshan Luo , Tingsheng Lu , Shudan Yao , Bing Qiu , Yun Wang , Yunfeng Lin . Research advances of tetrahedral framework nucleic acid-based systems in biomedicine. Chinese Chemical Letters, 2024, 35(11): 109591-. doi: 10.1016/j.cclet.2024.109591
10. [10]
  Shuang Li , Jiayu Sun , Guocheng Liu , Shuo Zhang , Zhong Zhang , Xiuli Wang . A new Keggin-type polyoxometallate-based bifunctional catalyst for trace detection and pH-universal photodegradation of phenol. Chinese Chemical Letters, 2024, 35(8): 109148-. doi: 10.1016/j.cclet.2023.109148
11. [11]
  Yatian Deng , Dao Wang , Jinglan Cheng , Yunkun Zhao , Zongbao Li , Chunyan Zang , Jian Li , Lichao Jia . A new popular transition metal-based catalyst: SmMn₂O₅ mullite-type oxide. Chinese Chemical Letters, 2024, 35(8): 109141-. doi: 10.1016/j.cclet.2023.109141
12. [12]
  Bo Yang , Suqiong Yan , Shirong Ban , Wei Huang . New horizons in phosphorus-based emitters: From circularly polarized fluorescence to room-temperature phosphorescence. Chinese Chemical Letters, 2025, 36(11): 110837-. doi: 10.1016/j.cclet.2025.110837
13. [13]
  Ying Zhao , Yin-Hang Chai , Meng-Meng Zhai , Qin-Ying Jin , Xiaoyan Lu , Yi-Dan Qiao , Lu-Fang Ma . New functional metal–organic framework (MOF) based optical thermometer by the post-synthesis doping rare earth ions into MOF. Chinese Chemical Letters, 2026, 37(1): 111085-. doi: 10.1016/j.cclet.2025.111085
14. [14]
  Fengyun Li , Zerong Pei , Shuting Chen , Gen li , Mengyang Liu , Liqin Ding , Jingbo Liu , Feng Qiu . Multifunctional nano-herb based on tumor microenvironment for enhanced tumor therapy of gambogic acid. Chinese Chemical Letters, 2024, 35(5): 108752-. doi: 10.1016/j.cclet.2023.108752
15. [15]
  Di Wang , Qing-Song Chen , Yi-Ran Lin , Yun-Xin Hou , Wei Han , Juan Yang , Xin Li , Zhen-Hai Wen . Tuning strategies and electrolyzer design for Bi-based nanomaterials towards efficient CO2 reduction to formic acid. Chinese Journal of Structural Chemistry, 2024, 43(8): 100346-100346. doi: 10.1016/j.cjsc.2024.100346
16. [16]
  Dongdong YANG , Jianhua XUE , Yuanyu YANG , Meixia WU , Yujia BAI , Zongxuan WANG , Qi MA . Design and synthesis of two coordination polymers for the rapid detection of ciprofloxacin based on triphenylpolycarboxylic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2466-2474. doi: 10.11862/CJIC.20240266
17. [17]
  Jimin HOU , Mengyang LI , Chunhua GONG , Shaozhuang ZHANG , Caihong ZHAN , Hao XU , Jingli XIE . Synthesis, structures, and properties of metal-organic frameworks based on bipyridyl ligands and isophthalic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 549-560. doi: 10.11862/CJIC.20240348
18. [18]
  Jun Li , Shi-Hu Du , Yao Zhang , Jia Liu , Jing Chen , Shi-Bo Cheng . Shell-independent superhalogen formation in aluminum-based clusters via boron Lewis acid ligands functionalization. Chinese Chemical Letters, 2026, 37(1): 111177-. doi: 10.1016/j.cclet.2025.111177
19. [19]
  Fangzhou Wang , Wentong Gao , Chenghui Li . A weak but inert hindered urethane bond for high-performance dynamic polyurethane polymers. Chinese Chemical Letters, 2024, 35(5): 109305-. doi: 10.1016/j.cclet.2023.109305
20. [20]
  Jaeheon Lee , Jung Hyeun Kim . Effect of thermal annealing on cold crystallization ability of thermoset polyurethane elastomer synthesized from fully bio-derived polyol. Chinese Journal of Structural Chemistry, 2025, 44(5): 100568-100568. doi: 10.1016/j.cjsc.2025.100568

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1293)
HTML views(22)

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