TY - JOUR
T1 - Synthesis and properties of novel aromatic polyimides derived from bis(p-aminophenoxy)methylphenylsilane
AU - Liaw, Der Jang
AU - Yang, Wen Chung Ou
AU - Li, Lain Jong
AU - Yang, Mei Hui
PY - 1997/1/18
Y1 - 1997/1/18
N2 - A novel siloxane-containing diamine, bis(p-aminophenoxy)methylphenylsilane (BAMPS), was synthesized from the condensation of dichloromethylphenylsilane with p-aminophenol in the presence of triethylamine. A series of BAMPS-based aromatic polyimides were prepared from BAMPS and various aromatic tetracarboxylic dianhydrides by the usual two-step procedure including ring-opening polyaddition to poly(amic acid)s and subsequent cyclodehydration to polyimides. The inherent viscosities of poly(amic acid)s IIIa-IIIf ranged from 0.09 to 0.36 dL g-1 in N,N-dimethylacetamide at a concentration of 0.5 g dL-1 at 30°C. The inherent viscosities of polyimides were between 0.06 and 0.32 dL g-1 in various solvents at 30°C. Polyimides, especially IVc and IVb were soluble in a wide range of organic solvents such as N-methyl-2-pyrrolidinone, concentrated H2SO4. N.N-dimethylacetamide, N.N-dimethylfomamide, and dimethyl sulfoxide. The polyimides were characterized by elementary analysis, IR spectra. TGA, and DSC. They also had glass transition temperatures ranging from 128 to 181°C. The 10% mass loas temperature was recorded in the range of 404-443°C in nitrogen and of 315-339°C in oxygen.
AB - A novel siloxane-containing diamine, bis(p-aminophenoxy)methylphenylsilane (BAMPS), was synthesized from the condensation of dichloromethylphenylsilane with p-aminophenol in the presence of triethylamine. A series of BAMPS-based aromatic polyimides were prepared from BAMPS and various aromatic tetracarboxylic dianhydrides by the usual two-step procedure including ring-opening polyaddition to poly(amic acid)s and subsequent cyclodehydration to polyimides. The inherent viscosities of poly(amic acid)s IIIa-IIIf ranged from 0.09 to 0.36 dL g-1 in N,N-dimethylacetamide at a concentration of 0.5 g dL-1 at 30°C. The inherent viscosities of polyimides were between 0.06 and 0.32 dL g-1 in various solvents at 30°C. Polyimides, especially IVc and IVb were soluble in a wide range of organic solvents such as N-methyl-2-pyrrolidinone, concentrated H2SO4. N.N-dimethylacetamide, N.N-dimethylfomamide, and dimethyl sulfoxide. The polyimides were characterized by elementary analysis, IR spectra. TGA, and DSC. They also had glass transition temperatures ranging from 128 to 181°C. The 10% mass loas temperature was recorded in the range of 404-443°C in nitrogen and of 315-339°C in oxygen.
UR - http://www.scopus.com/inward/record.url?scp=0030833162&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1097-4628(19970118)63:3<369::AID-APP13>3.0.CO;2-W
DO - 10.1002/(SICI)1097-4628(19970118)63:3<369::AID-APP13>3.0.CO;2-W
M3 - Article
AN - SCOPUS:0030833162
SN - 0021-8995
VL - 63
SP - 369
EP - 376
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 3
ER -