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

Product Name
POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE]
CAS No.
25765-47-3
Chemical Name
POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE]
Synonyms
POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE];Poly[N,N'-(1,3-phenylene)isophthalamide];1,3-Benzenedicarbonyldichloride,polymerwith1,3-benzenediamine
CBNumber
CB2207218
Molecular Formula
C14H12Cl2N2O2
Formula Weight
311.16
MOL File
25765-47-3.mol
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POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Property

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)
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Safety

WGK Germany 
3
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
446521
Product name
Poly[N,N′-(1,3-phenylene)isophthalamide]
Packaging
100g
Price
$106
Updated
2024/03/01
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POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE] Chemical Properties,Usage,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:


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

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

Sigma-Aldrich
Tel
021-61415566 800-8193336
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orderCN@merckgroup.com
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China
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Lynnchem
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86-(0)29-85992781 17792393971
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info@lynnchem.com
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Novachemistry
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44-20819178-90 02081917890
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(0)2080432064
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info@novachemistry.com
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United Kingdom
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Alfa Chemistry
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Fax
1-516-927-0118
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Info@alfa-chemistry.com
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United States
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BOC Sciences
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+1-631-485-4226
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1-631-614-7828
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inquiry@bocsci.com
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United States
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Energy Chemical
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021-58432009 400-005-6266
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021-58436166
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marketing@energy-chemical.com
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China
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Henan Tianfu Chemical Co.,Ltd.
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+86-0371-55170693 +86-19937530512
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0371-55170693
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info@tianfuchem.com
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China
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21639
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SHANGHAI KEAN TECHNOLOGY CO., LTD.
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+8613817748580
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021-50175322
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cooperation@kean-chem.com
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China
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40066
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Shanghai Acmec Biochemical Technology Co., Ltd.
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+undefined18621343501
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product@acmec-e.com
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China
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33338
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25765-47-3, POLY[N,N'-(1,3-PHENYLENE)ISOPHTHALAMIDE]Related Search:


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