Solid state 13C nuclear magnetic resonance for polyguanidines

被引：10
|
作者：
Lim, AR [1 ]
Kim, JH
Novak, BM
机构：
[1] Jeonju Univ, Dept Phys, Jeonju 560759, South Korea
[2] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA
来源：
POLYMER | 2000年 / 41卷 / 07期
关键词：
structural analysis; NMR spectroscopy; spin-lattice relaxation;
D O I：
10.1016/S0032-3861(99)00431-0
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The structure and variations in dynamic motions of three polyguanidines possessing different side chains were studied by C-13 CP/MAS NMR. From these results, the structures of the polyguanidines were confirmed, and the C-13 spin-lattice relaxation times in the rotating frame were measured. The polyguanidine backbone mobilities were measured as a function of size and chemical make up (aliphatic vs. aromatic). The main-chain carbon of polyguanidine (II) with aromatic side chains has a higher activation energy, 23.12 KJ/mol, than the polyguanidine (1) with aliphatic side chains, 19.76 KJ/mol. Also, the activation energy of the main-chain carbons of polyguanidine (II) and (LII) with aromatic side chains was found to depend on the size of side chains. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2431 / 2438
页数：8
相关论文
共 50 条
  • [31] A 13C solid state nuclear magnetic resonance spectroscopic study of cork cell wall structure: The effect of suberin removal
    Department of Chemistry, University of Aveiro, Campus Universitário, 3810 Aveiro, Portugal
    INT. J. BIOL. MACROMOL., 4 (293-305):
  • [32] Study on the spin probe added polymeric dense membranes by 13C solid-state nuclear magnetic resonance spectroscopy
    Rana, D
    Matsuura, T
    Khulbe, KC
    Feng, C
    JOURNAL OF APPLIED POLYMER SCIENCE, 2006, 99 (06) : 3062 - 3069
  • [33] Solid-State 13C Nuclear Magnetic Resonance Study of Soluble and Insoluble β-Glucans Extracted from Candida lusitaniae
    Bikmurzin, Ruslan
    Marsalka, Arunas
    Kalediene, Lilija
    MOLECULES, 2023, 28 (24):
  • [34] Solid-State 13C Nuclear Magnetic Resonance Spectroscopic Study on Amorphous Solid Complexes of Tolbutamide with 2-Hydroxypropyl-α-and -β-Cyclodextrins
    Kenya Kimura
    Fumitoshi Hirayama
    Hidetoshi Arima
    Kaneto Uekama
    Pharmaceutical Research, 1999, 16 : 1729 - 1734
  • [35] Solid-state 13C nuclear magnetic resonance spectroscopic study on amorphous solid complexes of tolbutamide with 2-hydroxypropyl-α- and -β-cyclodextrins
    Kimura, K
    Hirayama, F
    Arima, H
    Uekama, K
    PHARMACEUTICAL RESEARCH, 1999, 16 (11) : 1729 - 1734
  • [36] 13C Nuclear Magnetic Resonance Investigations of Neurotransmitter Energetics in Brain
    Patel, Anant Bahadur
    Saba, Kemal
    Varadarajan, K. S.
    Mishra, Pravin Kumar
    JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE, 2014, 94 (04) : 455 - 464
  • [37] Simulation of 13C nuclear magnetic resonance spectra for isodon terpenoid
    Yang, Guochen
    Tong, Jianbo
    Liu, Shuling
    JOURNAL OF MOLECULAR STRUCTURE, 2008, 891 (1-3) : 129 - 131
  • [38] NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY - 13C SPECTRA OF UNSUBSTITUTED INOSITOLS
    DORMAN, DE
    ANGYAL, SJ
    ROBERTS, JD
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1969, 63 (03) : 612 - &
  • [39] 13C nuclear magnetic resonance data of bile acid derivatives
    Dias, JR
    Gao, HW
    Kolehmainen, E
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2000, 56 (01) : 53 - 77
  • [40] 13C nuclear magnetic resonance investigations of neurotransmitter energetics in brain
    1600, Indian Institute of Science (94):
12345