Preparation and characterization of melamine/formaldehyde/polyethylene glycol crosslinking copolymers as solid-solid phase change materials
Preparation and characterization of melamine/formaldehyde/polyethylene glycol crosslinking copolymers as solid-solid phase change materials
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DOI：
10.1016/j.solmat.2014.04.013
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发表时间：
2014-08-01
影响因子：
6.9
通讯作者：
Zheng Wangang
中科院分区：
文献类型：
--
作者：
Li Yanshan;Wang Shujun;Zheng Wangang
参考胺醛缩合反应和醛化反应的反应机理和条件，合成了一种固固相变材料——三聚氰胺/甲醛/聚乙二醇（MFPEG）交联共聚物。采用傅里叶变换红外光谱（FT-IR）、H-1核磁共振光谱仪（H-1 NMR）、差示扫描量热仪（DSC）、热重分析系统（TGA）、广角x射线衍射仪（WXRD）和偏振光学显微镜（POM）研究了MFPEG交联共聚物的组成、化学结构、热物理和晶体学性能。结果表明，mfpeg交联共聚物具有优良的相变性能和适用温度范围。加热和冷却循环的最大潜热焓分别为109.4和103.9 J/g。mfpeg在氮气气氛中的分解温度范围约为340 ~ 455℃。(C) 2014年作者。这是一篇基于CC by-nc-nd许可（http://creativecommons.org/licenses/by-nc-nd/3.0/）的开放获取文章。
A kind of solid-solid phase change materials (SSPCMs), melamine/formaldehyde/polyethylene glycols (MFPEG) crosslinking copolymers, was synthesized referring to the reaction mechanism and conditions of amine-aldehyde condensation reaction and aldolization. The composition and chemical structure, thermophysical and crystallographic properties of MFPEG crosslinking copolymers were investigated by Fourier transform infrared spectroscopy (FT-IR), H-1 nuclear magnetic resonance spectrometer (H-1 NMR), differential scanning calorimetry (DSC), thermogravimetry analysis system (TGA), wide-angle X-ray diffraction (WXRD) and polarization optical microscopy (POM). The results indicate that MFPEGs crosslinking copolymers possess excellent phase change properties and an applicable temperature range. The maximal latent heat enthalpies of heating and cooling cycle are 109.4 and 103.9 J/g, respectively. The decomposing temperature range of MFPEGs is about 340-455 degrees C in nitrogen atmosphere. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).