Morphology and crystalline structure of inclusion compounds formed between poly(ethylene glycol) and urea

被引：8

作者：

Lin, Da-wei ^{[1
]}

Zhong, Zhi ^{[1
]}

Tang, Yi-ren ^{[1
]}

Gao, Yang ^{[1
]}

He, Ya-ning ^{[1
]}

Guo, Bao-hua ^{[1
]}

Xu, Jun ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem Engn, Inst Polymer Sci & Engn, Beijing 100084, Peoples R China

来源：

CHINESE JOURNAL OF POLYMER SCIENCE | 2014年 / 32卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Poly(ethylene glycol); Urea; Inclusion compounds; Morphology; Orientation; AZO-COUPLING REACTION; MOLECULAR-COMPLEXES; OXIDE)-UREA COMPLEXES; ELECTROSPUN FIBERS; BLOCK-COPOLYMERS; CONFORMATION; POLYETHERS; BEHAVIOR; OLIGOMER;

D O I：

10.1007/s10118-014-1496-8

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 poly(ethylene glycol) (PEG, with M (w) 2000)-urea inclusion compound (IC) crystallized at high temperature region showed two typical orientations, flat-on and edge-on crystals. 2D-XRD and polarized FTIR spectroscopy revealed that the PEG chains within urea channels were perpendicular to the substrate in flat-on oriented crystals, while PEG chain axes were parallel to the substrate and lay along the growth direction in the edge-on crystals. FTIR absorption bands of PEG in the ICs are sensitive to orientation of the crystals. A scheme of PEG chain packing in the urea IC channel was proposed, which could explain the orientation of the crystal nucleus causing the two types of morphologies. Furthermore, functioning of PEG2000 chain end with analine had significantly influence on the morphology and orientation of the inclusion compound crystals, due to the defects caused by large terminal groups included in the urea channel.

引用

页码：1234 / 1242

页数：9

共 50 条

[21] Preparation and characterization of the crystalline inclusion complex between β-cyclodextrin and poly(neopentyl glycol)
Li, JY
Yan, DY
MACROMOLECULAR CHEMISTRY AND PHYSICS, 2002, 203 (01) : 155 - 158
[22] EXAFS SPECTROSCOPIC STUDIES OF THE BROMINE ENVIRONMENT IN THE CRYSTALLINE INCLUSION-COMPOUNDS FORMED BETWEEN UREA AND ALPHA,OMEGA-DIBROMOALKANES
SHANNON, IJ
HARRIS, KDM
MAHDYARFAR, A
JOHNSTON, P
JOYNER, RW
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (16): : 3099 - 3104
[23] Inclusion Complex of α-Cyclodextrin with Poly(ethylene glycol) Brush
Takahashi, Shoko
Yamada, Norifumi L.
Ito, Kohzo
Yokoyama, Hideaki
MACROMOLECULES, 2016, 49 (18) : 6947 - 6952
[24] Inclusion complexes of multiarm poly(ethylene glycol) with cyclodextrins
Jiao, H
Goh, SH
Valiyaveettil, S
MACROMOLECULES, 2002, 35 (05) : 1980 - 1983
[25] Poly(ethylene glycol)-poly(tetrahydrofuran)-poly(ethylene glycol) triblock copolymer: Synthesis, crystallization behavior and novel morphology
Fan, W. W.
Fan, X. D.
Tian, W.
Liao, X. Q.
Zhang, W. B.
Mu, C. G.
Kong, J.
EXPRESS POLYMER LETTERS, 2013, 7 (05): : 416 - 430
[26] Rheological properties of hydrogels assembled by inclusion complexation between α-cyclodextrin and poly(ethylene glycol)
Wang, Jie
Liu, Peng
Ke, Hailan
Zheng, Li
Guo, Xuhong
Li, Li
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 237
[27] EFFECT OF CRYSTALLINE STRUCTURE ON SOME PROPERTIES OF PARAMAGNETIC CENTRES IN IRRADIATED INCLUSION COMPOUNDS OF UREA
ANELI, DN
KITAIGOR.AI
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY,USSR, 1971, 45 (04): : 481 - &
[28] Investigation of Morphology and Structure of Poly (ethylene glycol) -Coated Silver Nanowires by Electron Microscopy
Huang Li-Jian
Wang Er-Kang
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2010, 38 (02) : 149 - 152
[29] Inclusion of poly(ethylene glycol)s by crystalline (R)-(1-naphthyl)glycyl-(R)-phenylglycine
Akazome, M
Takahashi, T
Sonobe, R
Ogura, K
SUPRAMOLECULAR CHEMISTRY, 2001, 13 (01) : 109 - 136
[30] Nanosieves formed by poly(ethylene glycol) brushes on plasmonic nanopores
Dahlin, A. B.
Emilsson, G.
Xiong, K.
Schoch, R.
Lim, R. Y.
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 2015, 44 : S69 - S69

← 1 2 3 4 5 →