Synthesis and characterization of novel hyperbranched polyimides based on silsesquioxane nanocomposite networks
Yükleniyor...
Dosyalar
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Journal of Chemistry
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Öz: Başlık (İngilizce): Öz (İngilizce): A series of nanosized polyimides was successfully prepared by condensation polymerization of an octaamino-functionalized silsesquioxane and a series of commercially available dianhyride monomers. The polymerization of the octaamino silsesquioxane was carried out in 1-methyl-2-pyrrolidone (NMP) at room temperature, giving poly(amic acid) as precursor polymers that were readily converted to the corresponding polyimides by thermal treatment in the subsequent step, which is similar to the conventional 2-stage method. The appropriate molar ratio of the Silsesquioxane monomer to a dianhyride was 1: 1. These polyimides are readily soluble in polar aprotic solvents such as 1-methyl-2-pyrrolidone, and N, N-dimethylacetamide at room temperature, and show high thermal stability with a 10% weight loss, Td = 441 to 593 °C in N2.
Açıklama
Anahtar Kelimeler
Mühendislik, Kimya
Kaynak
Turkish Journal of Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
29
Sayı
1
Künye
TURGAY S., Ahmet G., SÜLEYMAN K. (2005). Synthesis and characterization of novel hyperbranched polyimides based on silsesquioxane nanocomposite networks, Turkish Journal of Chemistry, İnönü Üniversitesi, Malatya.
