𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Poly(amide-imide)s prepared from 4,4′-[1,4(or 1,3)- phenylenebis(isopropylidene-1,4-phenyleneoxy)]dianiline, trimellitic anhydride, and various aromatic diamines

✍ Scribed by Sheng-Huei Hsiao; Chin-Ping Yang; Jr-Chen Fan

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
382 KB
Volume
196
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Two imide ring‐bearing dicarboxylic acids, N,N′‐[1,4(or 1,3)‐phenylenebis(isopropylidene‐1,4‐phenyleneoxy‐1,4‐phenylene)]diphthalimide‐4‐carboxylic acid (p‐4 and m‐4), were prepared via condensation of 4,4′‐[1,4(or 1,3)‐phenylenebis(isopropylidene‐1,4‐phenyleneoxy)]dianiline (p‐3 and m‐3) with trimellitic anhydride. Two series of novel poly(amideimide)s were synthesized by the direct polycondensation of the diimide‐diacids p‐4 and m‐4, respectively, with various aromatic diamines using triphenyl phosphite and pyridine as condensing agents. The inherent viscosities of the resultant poly(amide‐imide)s were in the range of 0,43–1,68 dL/g, and most of these polymers were amorphous, as revealed by wideangle X‐ray diffractograms. Almost all the poly(amide‐imide)s were readily soluble in polar aprotic solvents such as N‐methyl‐2‐pyrrolidone (NMP), N,N‐dimethylacetamide (DMAc), and N,N‐dimethylformamide (DMF), and could be solution‐cast into transparent, flexible, and tough films. These polymers had glass transition temperatures in the range of 200‐267°C and showed no significant decomposition below 450°C, with 10% weight loss being recorded above 485°C in nitrogen or air.

📜 SIMILAR VOLUMES

New poly(amide–imide)s syntheses. XXIII.
New poly(amide–imide)s syntheses. XXIII. Synthesis and properties of poly(amide–imide)s derived from 4,4′-[1,4-phenylenebis(isopropylidene-1,4-phenyleneoxy)]dianiline and various bis(trimellitimide)s
✍ Chin-Ping Yang; Sheng-Huei Hsiao; Hsiu-Chun Hsiao 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 156 KB 👁 2 views

A series of poly(amide-imide)s III a-m containing flexible isopropylidene and ether groups in the backbone were synthesized by the direct polycondensation of 4,4Ј-[1,4-phenylenebis(isopropylidene-1,4-phenyleneoxy)]dianiline (PIDA) with various bis(trimellitimide)s II a-m in N-methyl-2-pyrrolidone (N

Novel organosoluble poly(amide-imide-imi
Novel organosoluble poly(amide-imide-imide)s synthesized from new tetraimide-dicarboxylic acid by condensation with 4,4′-oxydiphthalic anhydride, 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene, trimellitic anhydride, and various aromatic diamines
✍ Chin-Ping Yang; Ya-Ping Chen; E. M. Woo 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 326 KB 👁 1 views

## Abstract A new monomer of tetraimide‐dicarboxylic acid (IV) was synthesized by starting from ring‐opening addition of 4,4′‐oxydiphthalic anhydride, trimellitic anhydride, and 1,4‐bis(4‐amino‐2‐trifluoromethylphenoxy)benzene at a 1:2:2 molar ratio in __N__‐methyl‐2‐pyrrolidone (NMP). From this ne

Synthesis and properties of poly(ether i
Synthesis and properties of poly(ether imide)s derived from 4,4′-(1,5-naphthylenedioxy)diphthalic anhydride and various aromatic diamines
✍ Sheng-Huei Hsiao; Chin-Ping Yang; Kuan-Yu Chu 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 460 KB

## Abstract A naphthalene unit‐containing bis(ether anhydride), 4,4′‐(1,5‐naphthylenedioxy)‐diphthalic anhydride, was prepared in three steps starting from the nucleophilic nitro‐displacement reaction of 1,5‐dihydroxynaphthalene and 4‐nitrophthalonitrile in __N__,__N__‐dimethylformamide (DMF) solut

Preparation and properties of new poly(a
Preparation and properties of new poly(amide-imide)s based on 1,4-bis(4-trimellitimidophenoxy)naphthalene and aromatic diamines
✍ Chin-Ping Yang; Ruei-Shin Chen; Jhy-An Chen 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 2 views

A diimide dicarboxylic acid, 1,4-bis(4-trimellitimidophenoxy)naphthalene (1,4-BTMPN), was prepared by condensation of 1,4-bis(4-aminophenoxy)naphthalene and trimellitic anhydride at a 1 : 2 molar ratio. A series of novel poly(amide-imide)s (IIa-k) with inherent viscosities of 0.72 to 1.59 dL/g were

Synthesis and characterization of new po
Synthesis and characterization of new poly(amide–imide)s from 1,4-bis(4-trimellitimidophenoxy)-2-tert-butylbenzene with various diamines
✍ Der-Jang Liaw; Been-Yang Liaw 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 1 views

New poly(amide-imide)s were prepared from a diimide-dicarboxylic acid, 1,4-bis(4-trimellitimidophenoxy)-2-tert-butylbenzene (BTTB), with various diamines by the direct polycondensation in N-methyl-2-pyrrolidinone (NMP) using triphenyl phosphite and pyridine as condensing agents. The new diimide-dica

Synthesis and properties of new poly(ami
Synthesis and properties of new poly(amide-imide)s based on 1,3-bis[4,4'-(trimellitimido) phenoxy] propane and aromatic diamines
✍ Hossein Nasr Isfahani; Khalil Faghihi; Nasim Valikhani 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 491 KB 👁 1 views

## Abstract Six new poly(amide‐imide)s **8a–f** containing trimethylene moiety in the main chain were synthesized by the polycondensation reactions of 1,3‐bis[4,4'‐(trimellitimido) phenoxy] propane **6** with six different aromatic diamines **7a–f** in a medium constituting __N__‐methyl‐2‐pyrrolido