✦ LIBER ✦

Synthesis and characterization of poly(aryl amide imide)s derived from diphenyltrimellitic anhydride

✍ Scribed by Hai Bin Zheng; Yu Qi; Zhi Yuan Wang; Xi Gao Jian

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 133 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19991215)37:24<4541::aid-pola11>3.0.co;2-8

No coin nor oath required. For personal study only.

✦ Synopsis

The synthesis and characterization of a series of novel poly(aryl amide imide)s based on diphenyltrimellitic anhydride are described. The poly(aryl amide imide)s, having inherent viscosities of 0.39 -1.43 dL/g in N-methyl-2-pyrrolidinone at 30°C, were prepared by polymerization with aromatic diamines in N,N-dimethylacetamide and subsequent chemical imidization. All the polymers were amorphous, readily soluble in aprotic polar solvents such as DMAC, NMP, dimethylsulfoxide, N,N-dimethylformamide, and m-cresol, and could be cast to form flexible and tough films. The glass transition temperatures were in the range of 284 -366°C, and the temperatures for 5% weight loss in nitrogen were above 468°C.

📜 SIMILAR VOLUMES

Synthesis and characterization of novel

Synthesis and characterization of novel poly(amide imide)s

✍ Helmut Reinecke; José G. De La Campa; Javier De Abajo 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 422 KB 👁 2 views

Novel poly(amide imide)s having inherent viscosities in the range 0.89-1.56 dL/g were prepared by the method of low temperature polycondensation in solution of N,N-dimethylacetamide (DMA) from aromatic diamines and a new monomer: N-[4"-(chloroformylphenyl) -4'-iminobenzoyl] trimellitimide chloride.

Synthesis and characterization of fluori

Synthesis and characterization of fluorinated poly(imide–amide–sulfone)s

✍ M. Bruma; F. Mercer; J. Fitch; P. Cassidy 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 420 KB 👁 1 views

Preparation of poly(amide-imide)s derive

Preparation of poly(amide-imide)s derived from biphenyltetracarboxylic dianhydrides

✍ Akinori Shiotani; Masafumi Kohda 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 179 KB 👁 2 views

Four new diimide-dicarboxylic acids (I-IV) were prepared by condensation of s-or a-BPDA with para-or meta-aminobenzoic acid. A series of aromatic poly(amideimide)s containing these diimide-dicarboxylic units was prepared by three methods: (1) acid chloride method, (2) triphenylphosphite method, and

Synthesis and characterization of novel

Synthesis and characterization of novel aromatic-aliphatic poly(amide-imide-imide)s (PAII)

✍ Seo, Kyung Beom ;Jeong, Jae Kyun ;Choi, Seung Jae ;Hong, Young-Taik ;Suh, Dong H 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 124 KB 👁 2 views

Synthesis and characterization of novel

Synthesis and characterization of novel optically active poly(amide-imide)s

✍ Mallakpour, Shadpour E; Hajipour, Abdol-Reza; Khoee, Sepideh 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 120 KB 👁 2 views

4,4'-(Hexa¯uoroisopropylidene)-bis-(phthalic anhydride) (1) was reacted with L-leucine (2) in toluene solution at re¯uxing temperature in the presence of triethylamine and the resulting imideacid (4) was obtained in quantitative yield. The compound (4) was converted to the diacid chloride (5) by rea

Synthesis and characterization of novel

Synthesis and characterization of novel benzhydrol-containing poly(amide-imide)s

✍ Liaw, Der-Jang; Liaw, Been-Yang; Sillion, Bernard; Mercier, Régis; Thiria, Remi; 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 96 KB 👁 2 views

A series of novel benzhydrol-containing poly(amide-imide)s (PAIs) have been prepared from a new diimide-dicarboxylic acid, N,N'-bis(4-hydroxycarbonyl)-benzhydrol-3,3',4,4'-tetracarboxydiimide (BHTDA-DIA), with various diamines by direct polycondensation using triphenyl phosphite and pyridine as cond