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POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE]

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Structure
CAS No.
25765-47-3
Chemical Name:
POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE]
Synonyms
POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE];1,3-Benzenedicarbonyldichloride,polymerwith1,3-benzenediamine
CBNumber:
CB2207218
Molecular Formula:
C14H12Cl2N2O2
Molecular Weight:
311.16
MOL File:
25765-47-3.mol
MSDS File:
SDS
Modify Date:
2023/4/23 13:52:06
Request For Quotation

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Properties

Melting point >371 °C (dec.)(lit.)
Density 1.38 g/mL at 25 °C(lit.)
solubility DMF-LiCl: soluble
EPA Substance Registry System 1,3-Benzenedicarbonyl dichloride, polymer with 1,3-benzenediamine (25765-47-3)

SAFETY

Risk and Safety Statements

WGK Germany  3

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 446521 Poly[N,N′-(1,3-phenylene)isophthalamide] 25765-47-3 100G ₹4628.7 2022-06-14 Buy
Product number Packaging Price Buy
446521 100G ₹4628.7 Buy

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Chemical Properties,Uses,Production

Chemical Properties

Poly(m-phenylene isophthalamide) has an extremely high melting point (380-390°C) and cannot be melt processed by the usual means. Commercial material is supplied as fibre and as a paper and is used directly in these forms. Fibre is prepared by extruding a solution of the polymer in a mixture of dimethylformamide and lithium chloride into hot air. The aromatic polyamide papers are produced from a combinati~n of chopped fibres and chopped film (prepared continuously by interfacial polymerization).
At ordinary temperatures, poly(m-phenylene isophthalamide) has mechanical properties comparable to those of the aliphatic nylons but at elevated temperatures the aromatic polymer is greatly superior. Broadly, the mechanical properties of poly(m-phenylene isophthalamide) show little change up to about 200°C. The aromatic polymer also shows little change in electrical insulation properties over a similar temperature range. The polymer resists ignition and is free of after-glow. The chemical resistance of poly(m-phenylene isophthalamide) appears to be generally similar to that of the aliphatic nylons except that resistance to mineral acids is rather better. The fibre is used for heat and flame protective clothing. The paper has found use in electrical insulating applications where resistance to elevated temperatures is required.

Uses

Poly[N,N′-(1,3-phenylene)isophthalamide] is used in heat and flame protective clothing. Electrical insulating paper requiring high temperature stability.

Preparation

Poly(m-phenylene isophthalamide is produced by reaction of isophthaloyl chloride and m-phenylenediamine:

25765-47-3 synthesis


This reaction occurs rapidly in the presence of an acid acceptor under mild conditions. The conventional melt polymerization techniques, as used for the preparation of nylons, cannot be applied to aromatic polyamides since the melting points of the polymers are too high. Polymerization is therefore conducted either in solution (e.g. in methylene chloride) or in suspension. In the latter case, the diamine is dissolved in water, together with an acid acceptor (e.g. sodium carbonate) and the diacid chloride is dissolved in a solvent which is immiscible with water (e.g. carbon tetrachloride or cyclohexanone). The two solutions are then subjected to intensive mixing. Rapid reaction occurs at the liquid interface or just inside the solvent boundary and this technique is therefore commonly termed interfacial polymerization.

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Preparation Products And Raw materials

Raw materials

Preparation Products

POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Suppliers

Global( 11)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Henan Tianfu Chemical Co.,Ltd. +86-0371-55170693 +86-19937530512 China 21676 55 Inquiry
BOC Sciences +1-631-485-4226 United States 19553 58 Inquiry
Alfa Chemistry +1-5166625404 United States 21317 58 Inquiry
Shanghai Acmec Biochemical Technology Co., Ltd. +undefined18621343501 China 33350 58 Inquiry
SIGMA-RBI 800 736 3690 (Orders) Switzerland 6913 91 Inquiry
Riedel-de Haen AG 800 558-9160 United States 6825 87 Inquiry
Sigma-Aldrich 021-61415566 800-8193336 China 51471 80 Inquiry
Lynnchem 86-(0)29-85992781 17792393971 China 4587 58 Inquiry
Supplier Advantage
Henan Tianfu Chemical Co.,Ltd. 55
BOC Sciences 58
Alfa Chemistry 58
Shanghai Acmec Biochemical Technology Co., Ltd. 58
SIGMA-RBI 91
Riedel-de Haen AG 87
Sigma-Aldrich 80
Lynnchem 58

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POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] 1,3-Benzenedicarbonyldichloride,polymerwith1,3-benzenediamine 25765-47-3 C14H14N2O2n Amides and Imides Hydrophobic Polymers Materials Science Polymer Science Polymers Amides and Imides Hydrophobic Polymers Polymer Science