Method for counting the hydrogen-bond cross-links in coal

被引：0
|
作者：
Larsen, John W. [1 ]
Gurevich, Ilona [1 ]
Glass, Amy S. [1 ]
Stevenson, Damon S. [1 ]
机构：
[1] Lehigh Univ, Bethlehem, United States
来源：
Energy and Fuels | 1996年 / 10卷 / 06期
关键词：
Association reactions - Conformations - Crosslinking - Curve fitting - Entropy - Free energy - Hydrogen bonds - Macromolecules - Mathematical models - Solvents - Swelling - Titration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Increasing the amount of the hydrogen acceptor added to a nonpolar swelling solvent increases the swelling of the coal. Plotting swelling against pyridine concentration results to a titration curve which estimates the number of hydrogen bond crosslinks in the coal. The selectivity of the acceptor for crosslinking hydroxyls is due to the more favorable entropy change when one of these crosslinks is disrupted by a formation of a new H-bond to pyridine, which frees a portion of the coals leading to more favorable conformations.
引用
收藏
页码：1269 / 1272
相关论文
共 50 条
  • [41] Rearrangement of interstrand cross-links into intrastrand cross-links in cis-diamminedichloroplatinum(II)-modified DNA
    Perez, C
    Leng, M
    Malinge, JM
    NUCLEIC ACIDS RESEARCH, 1997, 25 (04) : 896 - 903
  • [42] Urine pyridinium cross-links determination by Beckman cross links kit
    Fermo, I
    Arcelloni, C
    Casari, E
    Paroni, R
    CLINICAL CHEMISTRY, 1997, 43 (11) : 2186 - 2187
  • [43] CHEMISTRY OF COLLAGEN CROSS-LINKS - NATURE OF CROSS-LINKS IN POLYMORPHIC FORMS OF DERMAL COLLAGEN DURING DEVELOPMENT
    BAILEY, AJ
    SIMS, TJ
    BIOCHEMICAL JOURNAL, 1976, 153 (02) : 211 - &
  • [44] Double polymer networks comprising covalent and hydrogen-bonded cross-links
    Onori, Ilaria
    Berrocal, Jose Augusto
    Weder, Christoph
    POLYMER, 2024, 298
  • [45] Calculation of hydrogen-bond basicity by artificial neural network method
    Fu, XC
    Yu, QS
    Liang, WQ
    ACTA PHYSICO-CHIMICA SINICA, 2000, 16 (09) : 844 - 849
  • [46] DYNAMICAL MODEL OF HYDROGEN-BOND - GREEN-FUNCTION METHOD
    ZGIERSKI, MZ
    ACTA PHYSICA POLONICA A, 1977, 51 (06) : 889 - 895
  • [47] UNIVERSALITY IN HYDROGEN-BOND NETWORKS
    NADLER, W
    KRAUSCHE, T
    PHYSICAL REVIEW A, 1991, 44 (12): : R7888 - R7890
  • [48] INTERMOLECULAR HYDROGEN-BOND IN ALLOPHANATES
    NIZELSKY, YN
    KOZAK, NV
    UKRAINSKII KHIMICHESKII ZHURNAL, 1988, 54 (06): : 622 - 624
  • [49] DOES AMMONIA HYDROGEN-BOND
    NELSON, DD
    FRASER, GT
    KLEMPERER, W
    SCIENCE, 1987, 238 (4834) : 1670 - 1674
  • [50] DYNAMIC MODEL OF HYDROGEN-BOND
    WITKOWSKI, A
    MOLECULAR PHYSICS, 1975, 29 (05) : 1441 - 1452
12345