Home

Citation: Ren Zhiyong, Ma Dezhu, Zhu Yan, Yu Shouzhi, Yang Huichang. ON THE CRTSTALLIZATION BEHAVIOR OF HARD SEGMENTS IN POLYESTER-BASED ALIPHATIC AND AROMATIC POLYURETHANES[J]. Chinese Journal of Applied Chemistry, ;1988, 5(3): 54-58. shu

ON THE CRTSTALLIZATION BEHAVIOR OF HARD SEGMENTS IN POLYESTER-BASED ALIPHATIC AND AROMATIC POLYURETHANES

1.
Henan Insitute of Chemisity, Zhengzhou

Received Date: 3 April 1987
Available Online: 4 July 1987

The methods of DSC, IR, WAXD, PLM and SALS were employed to investigate the differences between the crystallization bahavior of hard segments in the polyester-based aliphatic and aromatic polyurethanes. It is found that the rate of phase separation of aliPhatic polyurethane is higher and the hydrogen bonding is formed mainly between the hard segments, which promotes the crytallizaticn of hard segments, while the rate of phase separation of aromatic polyurethane is very low. Nevertheless, the hydrogen bonding can also be formed betwcen the soft and hard segments, which hinders the crystallization of hard segments.
- Polyurethane,
- Hard segments,
- CrYstallisation,
- Phase separation
1. [1]
  Yan Xiao , Shuling Li , Yifan Li , Jianing Fan , Linlin Shi . Discovering the Beauty of Life: Adding Some “Ingredients” to Crystals. University Chemistry, 2024, 39(6): 366-372. doi: 10.3866/PKU.DXHX202312025
2. [2]
  Lanjun Cheng , Xinyuan Wang , Jie An , Xiang Wu , Chengfeng Zhu , Yanming Fu , Yougui Li . Improvement of the Resolution Experiment of Racemic Tartaric Acid. University Chemistry, 2025, 40(7): 277-285. doi: 10.12461/PKU.DXHX202408010
3. [3]
  Kai Yang , Gehua Bi , Yong Zhang , Delin Jin , Ziwei Xu , Qian Wang , Lingbao Xing . Comprehensive Polymer Chemistry Experiment Design: Preparation and Characterization of Rigid Polyurethane Foam Materials. University Chemistry, 2024, 39(4): 206-212. doi: 10.3866/PKU.DXHX202308045
4. [4]
  Xuewei Qian , Xingwen Sun , Houjin Li , Zhanxiang Liu , Yuan Zheng , Lin Wu , Shuanglian Cai , Ying Xiong , Guangao Yu , Qingwen Liu , Jie Han , Xin Du , Chengshan Yuan , Qihan Zhang , Shuyong Zhang , Jianrong Zhang . Basic Operations and Specification Suggestions for Organic Chemical Recrystallization Experiments. University Chemistry, 2025, 40(5): 66-75. doi: 10.12461/PKU.DXHX202503126
5. [5]
  Chengshan Yuan , Xiaolong Li , Xiuping Yang , Xiangfeng Shao , Zitong Liu , Xiaolei Wang , Yongwen Shen . Standardized Operational Guidelines for Mixed-Solvent Recrystallization in Organic Chemistry Experiment. University Chemistry, 2025, 40(5): 122-127. doi: 10.12461/PKU.DXHX202504073
6. [6]
  Jinfeng Chu , Lan Jin , Yu-Fei Song . Exploration and Practice of Flipped Classroom in Inorganic Chemistry Experiment: a Case Study on the Preparation of Inorganic Crystalline Compounds. University Chemistry, 2024, 39(2): 248-254. doi: 10.3866/PKU.DXHX202308016
7. [7]
  Shi-Yu Lu , Wenzhao Dou , Jun Zhang , Ling Wang , Chunjie Wu , Huan Yi , Rong Wang , Meng Jin . Amorphous-Crystalline Interfaces Coupling of CrS/CoS₂ Few-Layer Heterojunction with Optimized Crystallinity Boosted for Water-Splitting and Methanol-Assisted Energy-Saving Hydrogen Production. Acta Physico-Chimica Sinica, 2024, 40(8): 2308024-0. doi: 10.3866/PKU.WHXB202308024
8. [8]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . Simultaneously Improving Inter-Plane Crystallization and Incorporating K Atoms in g-C₃N₄ Photocatalyst for Highly-Efficient H₂O₂ Photosynthesis. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-0. doi: 10.3866/PKU.WHXB202406005
9. [9]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . Remarkable Photocatalytic H₂O₂ Production Efficiency over Ultrathin g-C₃N₄ Nanosheet with Large Surface Area and Enhanced Crystallinity by Two-Step Calcination. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-0. doi: 10.3866/PKU.WHXB202406019
10. [10]
  Qiuting Zhang , Fan Wu , Jin Liu , Zian Lin . Chromatographic Stationary Phase and Chiral Separation Using Frame Materials. University Chemistry, 2025, 40(4): 291-298. doi: 10.12461/PKU.DXHX202405174
11. [11]
  Lan Ma , Cailu He , Ziqi Liu , Yaohan Yang , Qingxia Ming , Xue Luo , Tianfeng He , Liyun Zhang . Magical Surface Chemistry: Fabrication and Application of Oil-Water Separation Membranes. University Chemistry, 2024, 39(5): 218-227. doi: 10.3866/PKU.DXHX202311046
12. [12]
  Zijuan LI , Xuan LÜ , Jiaojiao CHEN , Haiyang ZHAO , Shuo SUN , Zhiwu ZHANG , Jianlong ZHANG , Yanling MA , Jie LI , Zixian FENG , Jiahui LIU . Synthesis of visual fluorescence emission CdSe nanocrystals based on ligand regulation. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 308-320. doi: 10.11862/CJIC.20240138
13. [13]
  Runjie Li , Hang Liu , Xisheng Wang , Wanqun Zhang , Wanqun Hu , Kaiping Yang , Qiang Zhou , Si Liu , Pingping Zhu , Wei Shao . 氨基酸的衍生及手性气相色谱分离创新实验. University Chemistry, 2025, 40(6): 286-295. doi: 10.12461/PKU.DXHX202407059
14. [14]
  Peipei Sun , Jinyuan Zhang , Yanhua Song , Zhao Mo , Zhigang Chen , Hui Xu . Built-in Electric Fields Enhancing Photocarrier Separation and H₂ Evolution. Acta Physico-Chimica Sinica, 2024, 40(11): 2311001-0. doi: 10.3866/PKU.WHXB202311001
15. [15]
  Wendian XIE , Yuehua LONG , Jianyang XIE , Liqun XING , Shixiong SHE , Yan YANG , Zhihao HUANG . Preparation and ion separation performance of oligoether chains enriched covalent organic framework membrane. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1528-1536. doi: 10.11862/CJIC.20240050
16. [16]
  Xinhao Yan , Guoliang Hu , Ruixi Chen , Hongyu Liu , Qizhi Yao , Jiao Li , Lingling Li . Polyethylene Glycol-Ammonium Sulfate-Nitroso R Salt System for the Separation of Cobalt (II). University Chemistry, 2024, 39(6): 287-294. doi: 10.3866/PKU.DXHX202310073
17. [17]
  Yue Zhang , Bao Li , Lixin Wu . GO-Assisted Supramolecular Framework Membrane for High-Performance Separation of Nanosized Oil-in-Water Emulsions. Acta Physico-Chimica Sinica, 2024, 40(5): 2305038-0. doi: 10.3866/PKU.WHXB202305038
18. [18]
  Jie ZHAO , Sen LIU , Qikang YIN , Xiaoqing LU , Zhaojie WANG . Theoretical calculation of selective adsorption and separation of CO₂ by alkali metal modified naphthalene/naphthalenediyne. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 515-522. doi: 10.11862/CJIC.20230385
19. [19]
  Yan LIU , Jiaxin GUO , Song YANG , Shixian XU , Yanyan YANG , Zhongliang YU , Xiaogang HAO . Exclusionary recovery of phosphate anions with low concentration from wastewater using a CoNi-layered double hydroxide/graphene electronically controlled separation film. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1775-1783. doi: 10.11862/CJIC.20240043
20. [20]
  Shui Hu , Houjin Li , Zhenming Zang , Lianyun Li , Rong Lai . Integration of Science and Education Promotes the Construction of Undergraduate-to-Master’s Integration Experimental Courses: A Case Study on the Extraction, Separation and Identification of Artemisinin from Artemisia annua. University Chemistry, 2024, 39(4): 314-321. doi: 10.3866/PKU.DXHX202310063

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(786)
HTML views(93)

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