Nanoporous Polycyanurates Created by Chemically-Induced Phase Separation: Structure-Property Relationships

被引：4

作者：

Grigoryeva, Olga ^{[1
]}

Fainleib, Alexander ^{[1
]}

Gusakova, Kristina ^{[1
]}

Starostenko, Olga ^{[1
]}

Saiter, Jean-Marc ^{[2
]}

Levchenko, Volodymyr ^{[1
,3
]}

Serghei, Anatoli ^{[3
]}

Boiteux, Gisele ^{[3
]}

Grande, Daniel ^{[4
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Macromol Chem, UA-02160 Kiev, Ukraine

[2] Univ Rouen, Fac Sci, AMME LECAP, Int Lab Inst Mat Res, F-76801 St Etienne, France

[3] Univ Lyon 1, CNRS UMR 5223, F-69622 Villeurbanne, France

[4] Univ Paris Est Creteil Val de Marne, CNRS, Inst Chim & Mat Paris Est, UMR 7182, F-94320 Thiais, France

来源：

MACROMOLECULAR SYMPOSIA | 2014年 / 341卷 / 01期

关键词：

chemically-induced phase separation; nanoporous thermosets; polycyanurate network; structure-property relationships; thermal annealing; CYANATE ESTER RESINS; NETWORKS; THERMOPOROMETRY; DEGRADATION; SIZE;

D O I：

10.1002/masy.201300174

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Nanoporous thermostable polycyanurate (PCN) films were generated by in-situ metal complex-catalyzed polycyclotrimerization of 4,4'-ethylidenediphenyl dicyanate in the presence of 20-50 wt.% of inert high-boiling temperature liquids as porogens, i.e. dioctyl, dibutyl or dimethyl phthalates (DOP, DBP or DMP), followed by their extraction from the densely crosslinked PCN frameworks, drying, and additional annealing at various temperatures. The nanoporous structure for all PCN-based films developed was investigated by SEM, BET, and DSC-based thermoporometry. Furthermore, the thermal and dielectric properties of the nanoporous films were also examined. The method developed allows producing nanoporous films for membranes with controlled thermal and dielectric properties as well as porosity parameters.

引用

页码：57 / 66

页数：10

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