Crystalline phases of poly(ethylene oxide) oligomers and sodium triflate: Changes in coordination and conformation with chain length

被引：31

作者：

Rhodes, CP ^{[1
]}

Khan, M ^{[1
]}

Frech, R ^{[1
]}

机构：

[1] Univ Oklahoma, Dept Chem & Biochem, Norman, OK 73072 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2002年 / 106卷 / 40期

关键词：

D O I：

10.1021/jp0141981

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Crystalline phases of monoglyme:NaCF3SO3, diglyme:NaCF3SO3, and tetraglyme:NaCF3SO3 have been characterized by DSC, X-ray diffraction, and vibrational spectroscopy. Comparison of the structures allows for the investigation of the effect of the number of ethylene oxide units on local structure in these systems. The cation environments, anion environments, and glyme conformations of the three compounds are compared with each other and to the high molecular weight crystalline poly(ethylene oxide):NaCF3SO3 compound. The cation coordination number varies from 5 to 7 and consists of varying contributions of ether and triflate oxygens. Higher coordination numbers are observed with increasing numbers of ethylene oxide units. Similar conformational sequences are observed in the structures. The comparison of the vibrational spectra of the compounds reveal differences in the v(s)(SO3) and delta(s)(CF3) modes related to the. different potential energy environments of the triflate anion in the compounds.

引用

页码：10330 / 10337

页数：8

共 50 条

[41] Microscopic Structure, Conformation, and Dynamics of Ring and Linear Poly(ethylene oxide) Melts from Detailed Atomistic Molecular Dynamics Simulations: Dependence on Chain Length and Direct Comparison with Experimental Data
Tsalikis, Dimitrios G.
Koukoulas, Thanasis
Mavrantzas, Vlasis G.
Pasquino, Rossana
Vlassopoulos, Dimitris
Pyckhout-Hintzen, Wim
Wischnewski, Andreas
Monkenbusch, Michael
Richter, Dieter
MACROMOLECULES, 2017, 50 (06) : 2565 - 2584
[42] Molecular Dynamics in the Crystalline Regions of Poly(ethylene oxide) Containing a Well-Defined Point Defect in the Middle of the Polymer Chain
Golitsyn, Yury
Pulst, Martin
Kressler, Joerg
Reichert, Detlef
JOURNAL OF PHYSICAL CHEMISTRY B, 2017, 121 (17): : 4620 - 4630
[43] INFLUENCE OF GRAFTED CHAIN-LENGTH OF A PHENOLIC COPOLYMER ON ITS COMPLEX-FORMATION WITH POLYVINYL PYRROLIDONE) AND POLY(ETHYLENE OXIDE)
CHATTERJEE, SK
SETHI, KR
JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1984, A21 (02): : 115 - 126
[44] Chain length dependence of spherulitic growth rates in poly(ethylene oxide): A test of the Lauritzen-Hoffman regime theory.
Marand, H
Huang, ZY
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 228 : U425 - U425
[45] End chain length effect of hydrophobically end-capped poly(ethylene oxide)s on their self-assemblies in solution
Kim, M
Choi, YW
Sim, JH
Choo, J
Sohn, D
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (24): : 8269 - 8277
[46] EFFECT OF BIMODAL CHAIN-LENGTH DISTRIBUTION ON THE THERMAL-CHARACTERISTICS OF POLY(ETHYLENE OXIDE) END-LINKED NETWORKS
CLARSON, SJ
MARK, JE
SUN, CC
DODGSON, K
EUROPEAN POLYMER JOURNAL, 1992, 28 (07) : 823 - 825
[47] INVESTIGATION OF THE CHAIN-LENGTH DEPENDENCE OF SELF-DIFFUSION OF POLY(DIMETHYLSILOXANE) AND POLY(ETHYLENE OXIDE) IN THE MELT WITH PULSED-FIELD GRADIENT NMR
APPEL, M
FLEISCHER, G
MACROMOLECULES, 1993, 26 (20) : 5520 - 5525
[48] The effects of acyl chain length on the micelle properties of poly(ethylene oxide)-block-poly(N-hexyl-L-aspartamide)-acyl conjugates
Adams, ML
Kwon, GS
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION, 2002, 13 (09) : 991 - 1006
[49] EFFECT OF PYRENE CHAIN END LABELING ON THE INTERACTION OF POLY(ETHYLENE OXIDE) WITH SODIUM DODECYL-SULFATE IN AQUEOUS-SOLUTION
QUINA, F
ABUIN, E
LISSI, E
MACROMOLECULES, 1990, 23 (25) : 5173 - 5175
[50] Sodium-ion electrolytes based on poly-ethylene oxide oligomers in dual-carbon cells: Anion size drives the charging behavior
Mendes, Rodrigo A.
Dias, Luis G.
Da Silva, Juarez L. F.
Siqueira, Leonardo J. A.
NANO ENERGY, 2023, 118

← 1 2 3 4 5 →