Home

Citation: YE Xiu-Dong, ZHOU Guo-Yan, HUA Ze-Zhao. A new Method for Measuring the Glass Transition Temperature of the Maximally Freeze-concentrated Glucose Solution by DSC[J]. Acta Physico-Chimica Sinica, ;2006, 22(11): 1347-1352. doi: 10.3866/PKU.WHXB20061109 shu

A new Method for Measuring the Glass Transition Temperature of the Maximally Freeze-concentrated Glucose Solution by DSC

1.
Institute of Cryomedicine and Food Refrigeration, Shanghai University of Science and Technology, Shanghai 200093, P. R. China

Received Date: 11 May 2006
Available Online: 6 November 2006

The new concept of the glass-transition temperature of the partially freeze-concentrated solution (Tgf) is brought forward and a new method is given for measuring Tgf of 20% and 45% glucose solution using differential scanning calorimetry (DSC), which is based on annealing samples for long periods of time at different temperatures. The influence of annealing temperature on Tgf is studied. It is found that the Tgf increases initially with annealing temperature up to −50 ℃, and decreases as the temperature continues to increase, and exhibiting a od linear relation in both cases. The same phenomenon was observed for glucose solutions of different concentrations. It is concluded that the Tg′ (glass transition temperature of the maximally freeze-concentrated solution) can be determined from the intersection of the two curves reflecting the Tgf change with annealing temperature. The optimal annealing temperature(−50 ℃) and accurate glass transition temperature(Tg′, −55 ℃） of glucose solution are obtained.
- Glass transition temperature of the maximally free-concentrated solution;Glucose;DSC;Annealing;Glass transition temperature of the partially free-concentrated solution
1. [1]
  Donghui PAN , Yuping XU , Xinyu WANG , Lizhen WANG , Junjie YAN , Dongjian SHI , Min YANG , Mingqing CHEN . Preparation and in vivo tracing of ⁶⁸Ga-labeled PM_2.5 mimetic particles for positron emission tomography imaging. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 669-676. doi: 10.11862/CJIC.20230468
2. [2]
  Yan Liu , Yuexiang Zhu , Luhua Lai . Introduction to Blended and Small-Class Teaching in Structural Chemistry: Exploring the Structure and Properties of Crystals. University Chemistry, 2024, 39(3): 1-4. doi: 10.3866/PKU.DXHX202306084
3. [3]
  Ji Qi , Jianan Zhu , Yanxu Zhang , Jiahao Yang , Chunting Zhang . Visible Color Change of Copper (II) Complexes in Reversible SCSC Transformation: The Effect of Structure on Color. University Chemistry, 2024, 39(3): 43-57. doi: 10.3866/PKU.DXHX202307050
4. [4]
  Xuanzhu Huo , Yixi Liu , Qiyu Wu , Zhiqiang Dong , Chanzi Ruan , Yanping Ren . Integrated Experiment of “Electrolytic Preparation of Cu₂O and Gasometric Determination of Avogadro’s Constant: Implementation, Results, and Discussion: A Micro-Experiment Recommended for Freshmen in Higher Education at Various Levels Across the Nation. University Chemistry, 2024, 39(3): 302-307. doi: 10.3866/PKU.DXHX202308095
5. [5]
  Yiling Wu , Peiyao Jin , Shenyue Tian , Ji Zhang . The Star of Sugar Substitutes: An Interview of Erythritol. University Chemistry, 2024, 39(9): 22-27. doi: 10.12461/PKU.DXHX202404034
6. [6]
  Ling Zhang , Jing Kang . Turn Waste into Valuable: Preparation of High-Strength Water-Based Adhesives from Polymethylmethacrylate Wastes: a Comprehensive Chemical Experiments. University Chemistry, 2024, 39(2): 221-226. doi: 10.3866/PKU.DXHX202306075
7. [7]
  Naiying Fan , Chuanli Qin , Guo Zhang , Bin Wang , Yan Wang , Bing Zheng , Yichun Qu , Zhiyao Sun , Guanghui An . Case Design of Course Ideological and Political Education in Chemical Experiment Safety: the Safe Use of Common Laboratory Instruments and Glassware. University Chemistry, 2024, 39(2): 242-247. doi: 10.3866/PKU.DXHX202309061
8. [8]
  Hongsheng Tang , Yonghe Zhang , Dexiang Wang , Xiaohui Ning , Tianlong Zhang , Yan Li , Hua Li . A Wonderful Journey through the Kingdom of Hazardous Chemicals. University Chemistry, 2024, 39(9): 196-202. doi: 10.12461/PKU.DXHX202403098
9. [9]
  Yuhang Jiang , Weijie Liu , Jiaqi Cai , Jiayue Chen , Yanping Ren , Pingping Wu , Liulin Yang . A Journey into the Science and Art of Sugar: “Dispersion of Light and Optical Rotation of Matter” Science Popularization Experiment. University Chemistry, 2024, 39(9): 288-294. doi: 10.12461/PKU.DXHX202401054
10. [10]
  Shiyan Cheng , Yonghong Ruan , Lei Gong , Yumei Lin . Research Advances in Friedel-Crafts Alkylation Reaction. University Chemistry, 2024, 39(10): 408-415. doi: 10.12461/PKU.DXHX202403024
11. [11]
  Xiao Liu , Guangzhong Cao , Mingli Gao , Hong Wu , Hongyan Feng , Chenxiao Jiang , Tongwen Xu . Seawater Salinity Gradient Energy’s Job Application in the Field of Membranes. University Chemistry, 2024, 39(9): 279-282. doi: 10.3866/PKU.DXHX202306043
12. [12]
  Wenyan Dan , Weijie Li , Xiaogang Wang . The Technical Analysis of Visual Software ShelXle for Refinement of Small Molecular Crystal Structure. University Chemistry, 2024, 39(3): 63-69. doi: 10.3866/PKU.DXHX202302060
13. [13]
  Yanxin Wang , Hongjuan Wang , Yuren Shi , Yunxia Yang . Application of Python for Visualizing in Structural Chemistry Teaching. University Chemistry, 2024, 39(3): 108-117. doi: 10.3866/PKU.DXHX202306005
14. [14]
  Yongming Guo , Jie Li , Chaoyong Liu . Green Improvement and Educational Design in the Synthesis and Characterization of Silver Nanoparticles. University Chemistry, 2024, 39(3): 258-265. doi: 10.3866/PKU.DXHX202309057
15. [15]
  Yingxian Wang , Tianye Su , Limiao Shen , Jinping Gao , Qinghe Wu . Introduction of Chinese Lacquer from the Perspective of Chemistry: Popularizing Chemistry in Lacquer and Inherit Lacquer Art. University Chemistry, 2024, 39(5): 371-379. doi: 10.3866/PKU.DXHX202312015
16. [16]
  Jinyao Du , Xingchao Zang , Ningning Xu , Yongjun Liu , Weisi Guo . Electrochemical Thiocyanation of 4-Bromoethylbenzene. University Chemistry, 2024, 39(6): 312-317. doi: 10.3866/PKU.DXHX202310039
17. [17]
  Chengxia Tong , Yajie Li , Jin Yan , Xuejian Qu , Shigang Wei , Yong Fan , Zhiguang Song , Yupeng Guo . The Construction and Practice of a Comprehensive and Three-Dimensional Practical Education Model. University Chemistry, 2024, 39(7): 49-55. doi: 10.12461/PKU.DXHX202404155
18. [18]
  Xu Liu , Chengfang Liu , Jie Huang , Xiangchun Li , Wenyong Lai . Research on the Application of Diversified Teaching Models in the Teaching of Physical Chemistry. University Chemistry, 2024, 39(8): 112-118. doi: 10.3866/PKU.DXHX202402021
19. [19]
  Ruming Yuan , Laiying Zhang , Xiaoming Xu , Pingping Wu , Gang Fu . Application of Mathematica in Visualizing Physical Chemistry Formulas. University Chemistry, 2024, 39(8): 375-382. doi: 10.3866/PKU.DXHX202401030
20. [20]
  Dongxia Zhang , Sijia Hao , Jiarui Wang , Jiwei Wang , Xiaogang Dong , Liang Jiao . Construction and Reflection on the Safety Management of Hazardous Chemicals in University Laboratories. University Chemistry, 2024, 39(10): 229-235. doi: 10.12461/PKU.DXHX202403078

Get Citation

PDF

XML

Metrics

PDF Downloads(2607)
Abstract views(3723)
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