Changes in molecular mobility of sorbitol plasticized starch during aging

被引：1
|
作者：
Fricova, Ol'ga [1 ]
Hutnikova, Maria [1 ]
机构：
[1] Tech Univ Kosice, Fac Elect Engn & Informat, Letna 9, Kosice 04200, Slovakia
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2022年 / 139卷 / 39期
关键词：
biopolymers; molecular mobility; NMR; plasticizer release; thermal analysis; thermoplastics; GLASS-TRANSITION; NMR; CRYSTALLINITY; GLYCEROL; SPECTROSCOPY; POLYMORPHISM; H-1;
D O I：
10.1002/app.52948
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Thermoplastic corn starch with 0.4 parts by weight of sorbitol plasticizer was studied using dynamic-mechanical thermal analysis (DMTA) and hydrogen nuclear magnetic resonance (H-1 NMR) to assess the changes in molecular mobility during a period of 26 weeks of storage. Motional heterogeneity of this thermoplastic starch (TPS) was found even after a short aging time by means of DMTA. Besides the glass transition processes in starch-rich and plasticizer-rich domains, other relaxation processes appear in TPS samples aged for a longer time. Sorbitol release and/or some moisture uptake was observed in H-1 NMR spectra of long-aged samples. After the whole monitored aging period, sample surfaces were covered with white powder due to sorbitol leakage from the TPS structure.
引用
收藏
页数：10
相关论文
共 50 条
  • [21] CHANGES IN THE MOLECULAR COMPOSITION OF MAIZE STARCH DURING KERNEL DEVELOPMENT
    PRAZNIK, W
    SCHILLINGER, H
    BECK, RHF
    STARCH-STARKE, 1987, 39 (06): : 183 - 187
  • [22] Fruiting effects on diurnal changes in sorbitol and starch contents in peach leaves
    Ali, K
    Nii, N
    JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE, 1999, 68 (04): : 739 - 745
  • [23] Effect of branched 1,4-butanediol citrate oligomers with different molecular weights on toughness and aging resistance of glycerol plasticized starch
    Ouyang, Haishun
    Jin, Dongliang
    He, Yixuan
    Tang, Kewen
    Guo, Xiaoming
    Lin, Yi
    Cheng, Fei
    Zhu, Puxin
    Wu, Dacheng
    Zhang, Kang
    INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2024, 268
  • [24] STUDY OF MOLECULAR MOBILITY IN PLASTICIZED POLYVINYL FLUORIDE BY RADIOTHERMOLUMINESCENCE AND THERMOMECHANICAL METHODS
    GAFUROV, AK
    MUKHIDDINOV, BF
    ASAMOV, MK
    NIKOLSKII, VG
    FILIPPOV, VV
    VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA B, 1984, 26 (09): : 673 - 675
  • [25] Changes in molecular size and shape of waxy maize starch during dextrinization
    Sun, Zhenhua
    Kang, Ji
    Shi, Yong-Cheng
    FOOD CHEMISTRY, 2021, 348
  • [26] Structural dependence of the molecular mobility in acetylated starch
    Nasseri, Rasool
    Moresoli, Christine
    Yu, Aiping
    Yuan, Zhongshun
    Xu, Chunbao
    Polymer, 2021, 215
  • [27] Structural dependence of the molecular mobility in acetylated starch
    Nasseri, Rasool
    Moresoli, Christine
    Yu, Aiping
    Yuan, Zhongshun
    Xu, Chunbao
    POLYMER, 2021, 215
  • [28] Effect of Starch on the Molecular Mobility of Amorphous Sucrose
    You, Yumin
    Ludescher, Richard D.
    JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2011, 59 (07) : 3340 - 3347
  • [29] MOLECULAR-CHANGES DURING AGING AND CATARACTOGENISIS IN THE HUMAN LENS
    WANG, RH
    MERRIAM, J
    DILLON, J
    INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 1991, 32 (04) : 748 - 748
  • [30] Molecular mobility of sorbitol and maltitol: A ^13C NMR and molecular dynamics approach
    M.M. Margulies
    B. Sixou
    L. David
    G. Vigier
    R. Dolmazon
    M. Albrand
    The European Physical Journal E, 2000, 3 : 55 - 62
12345