6533b7cffe1ef96bd12590cd
RESEARCH PRODUCT
New phosphazene-based chain extenders containing allyl and epoxide groups
Mario GleriaNadka Tzankova DintchevaA. Boscolo-boscolettoF. P. La MantiaAlessandro SassiP. PannocchiaG. PaceRoberta BertaniAlfonso VenzoE. GhediniRoberto Scaffarosubject
Polymers and PlasticsGeneral Chemical EngineeringEpoxidechemistry.chemical_compoundPolymer chemistryMaterials ChemistryOrganic chemistryThermal stabilityPhosphazenechemistry.chemical_classificationchain extensionpolyamideGeneral ChemistryEpoxyPolymerNMREnd-groupSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiNylon 6chemistryvisual_artPolyamidecyclophosphazeneNylon-6; cyclophosphazenes; chain extension; polyamides; NMR.visual_art.visual_art_mediumnylon-6description
In this paper we present the synthesis and the characterization of cyclophosphazenes substituted with allyl groups, their transformation in epoxide-containing cyclophosphazenes and the final utilization of these compounds as chain extenders in combination with polyamides. The reaction at high temperature of Nylon-6 with epoxy-functionalized cyclophosphazenes leads to the opening of the epoxy units by the action of both amino (--NH2) and carboxylic (--COOH) end-groups of the polymer to enhance the final molecular weight of this material. The consequences of this fact on the thermal, mechanical and visco-elastic properties of treated Nylon-6 have been also evaluated and compared to those of the pristine material. Possible utilization of these cyclophosphazenes in recycling processes for degraded polyamides could be envisaged.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 | Designed Monomers and Polymers |