فهرس المقالات Diethylenetriamine حرية الوصول المقاله صفحة الملخص نص كامل 1 - Silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives Khodabakhsh Niknam Seyed Ahmad Sajadi Roghayeh Hosseini Mojtaba Baghernejad حرية الوصول المقاله صفحة الملخص نص كامل 2 - Synthesis and application of chelating resins based on polyacrylonitrilediethylenetriamine for metal ions removal Nasser Arsalani Elnaz Ghasemi Roghayeh Rakh Ali Akbar Entezami