Structure of a spin-crossover Fe(II)-1,2,4-triazole polymer complex dispersed in an isotactic polystyrene matrix

被引：33

作者：

Rubio, Miguel ^{[1
]}

Hernandez, Rebeca ^{[1
]}

Nogales, Aurora ^{[2
]}

Roig, Anna ^{[3
]}

Lopez, Daniel ^{[1
]}

机构：

[1] CSIC, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain

[2] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

[3] CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Spain

来源：

EUROPEAN POLYMER JOURNAL | 2011年 / 47卷 / 01期

关键词：

Metallo organic polymer; Isotactic polystyrene; Spin crossover transition; Nucleation; POLYELECTROLYTE-AMPHIPHILE COMPLEX; LANGMUIR-BLODGETT-FILMS; PHASE-TRANSITION; MOLECULAR MATERIALS; THERMAL HYSTERESIS; IRON(II) COMPLEXES; ROOM-TEMPERATURE; MEMORY DEVICES; LIQUID; STATES;

D O I：

10.1016/j.eurpolymj.2010.10.029

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Isotactic polystyrene (i-PS) was employed as a matrix to disperse a metallo-organic polymer of [Fe(II) (4-octadecyl-1 2 4-triazole)(3)(CIO4)(2)] in order to obtain novel functional materials exhibiting thermal spin-crossover transition A detailed investigation of the structure of the metallo-organic polymer and metallo-organic polymer/iPS blends has been carried out by DSC WAXD and SAXS techniques as a function of temperature and metallo-organic polymer/iPS proportion The results obtained confirm on the one hand that a structural transition associated with a change in the magnetic susceptibility of the metallo-organic polymer is preserved in the presence of i-PS This transition was found to be associated to both an inter-conversion of lamellar structures into hexagonal structures and to an increase of inter-sheet distances within the lamellar structures in metallo-organic polymer films prepared by casting from toluene solutions On the other hand an Increase of the degree of crystallinity of the iPS is observed in the presence of the metallo-organic polymer which suggests some nucleating effect of the metallo organic polymer in the crystallization of isotactic polystyrene (c) 2010 Elsevier Ltd All rights reserved

引用

页码：52 / 60

页数：9

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