6 Result(s)

Article

Preparation of Polyimide-Silica Nanocomposites from Nanoscale Colloidal Silica

The polyamic acid (PAA) solutions were blended directly with a commercial nanoscale colloidal silica sol, and converted to polyimides (PIs)/silica nanocomposite films. Polyamic acid was prepared from the react...

Jiann-Wen Huang, Ya-Lan Wen, Chiun-Chia Kang, Mou-Yung Yeh in Polymer Journal (2007)

Article

Isothermal Crystallization of Poly(ethylene-co-glycidyl methacrylate)/Silica Nanocomposites

γ-Aminopropyltriethoxysilane was used to modify nano-size silica particles (A-Silica), and silanation was studied by ²⁹Si and ¹³C CP MAS NMR. 3 wt % original silica (Silica) and modified silica (A-Silica) particl...

Jiann-Wen Huang, Chiun-Chia Kang, Tse-Hsin Chen in Polymer Journal (2005)

Article

Non-isothermal Crystallization of Poly(ethylene-co-glycidyl methacrylate)/Silica Nanocomposites

Nano-sized silica particles were modified by γ-aminopropyltriethoxysilane and the modified and unmodified silica particles were then respectively compounded with poly(ethylene-co-glycidyl methacrylate) (PEGMA) in...

Jiann-Wen Huang, Chiun-Chia Kang, Chi-Jen Lin, Cheng-Tien Lee in Polymer Journal (2005)

Article

Unusual Thermal Degradation Behavior of PEGMA in Air at Different Heating Rates

Jiann-Wen Huang, Chiun-Chia Kang in Polymer Journal (2004)

Article

Reactivity of Poly(amic acid) Isomers in Thermal Imidization

The reactivity of isomers of poly(amic acid) prepared from 4,4′-oxydianiline and pyromellitic dianhydride in thermal imidization was investigated both in solution and in solid state at 130°C. FT-NMR was the ma...

Ning-Jo Chu, Jiann-Wen Huang in Polymer Journal (1990)