Nylon 4,I: an amorphous polyamide

R.J. Gaymans; A.G.J. van der Ham

doi:10.1016/0032-3861(84)90247-7

Nylon 4,I: an amorphous polyamide

R.J. Gaymans, A.G.J. van der Ham

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Abstract

The melt polymerization of nylon 4, I was studied, starting with nylon-salt and nylon prepolymers (ηinh=0.25). With nylon-salt only low molecular polymers were obtained, while with prepolymers the inherent viscosity could be raised to 0.77 (3h, 270°, vac.). The cyclization of tetra methylene diamine to pyrrolidine seem to be the major disturbing factor. The polymer is glassy and could easily be melt pressed. The torsion modulus of the material at 20°C was high (1.8 109 Pa) and remained high to near its Tg (138°C).

Original language	English
Pages (from-to)	1755-1758
Journal	Polymer
Volume	25
Issue number	12
DOIs	https://doi.org/10.1016/0032-3861(84)90247-7
Publication status	Published - 1984

Keywords

Amorphous nylon
Nylon 4,I
Tetra methylene diamine
Isophthalic acid
Properties
Polyamide synthesis

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10.1016/0032-3861(84)90247-7

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title = "Nylon 4,I: an amorphous polyamide",

abstract = "The melt polymerization of nylon 4, I was studied, starting with nylon-salt and nylon prepolymers (ηinh=0.25). With nylon-salt only low molecular polymers were obtained, while with prepolymers the inherent viscosity could be raised to 0.77 (3h, 270°, vac.). The cyclization of tetra methylene diamine to pyrrolidine seem to be the major disturbing factor. The polymer is glassy and could easily be melt pressed. The torsion modulus of the material at 20°C was high (1.8 109 Pa) and remained high to near its Tg (138°C).",

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T1 - Nylon 4,I: an amorphous polyamide

AU - Gaymans, R.J.

AU - van der Ham, A.G.J.

PY - 1984

Y1 - 1984

N2 - The melt polymerization of nylon 4, I was studied, starting with nylon-salt and nylon prepolymers (ηinh=0.25). With nylon-salt only low molecular polymers were obtained, while with prepolymers the inherent viscosity could be raised to 0.77 (3h, 270°, vac.). The cyclization of tetra methylene diamine to pyrrolidine seem to be the major disturbing factor. The polymer is glassy and could easily be melt pressed. The torsion modulus of the material at 20°C was high (1.8 109 Pa) and remained high to near its Tg (138°C).

AB - The melt polymerization of nylon 4, I was studied, starting with nylon-salt and nylon prepolymers (ηinh=0.25). With nylon-salt only low molecular polymers were obtained, while with prepolymers the inherent viscosity could be raised to 0.77 (3h, 270°, vac.). The cyclization of tetra methylene diamine to pyrrolidine seem to be the major disturbing factor. The polymer is glassy and could easily be melt pressed. The torsion modulus of the material at 20°C was high (1.8 109 Pa) and remained high to near its Tg (138°C).

KW - Amorphous nylon

KW - Nylon 4,I

KW - Tetra methylene diamine

KW - Isophthalic acid

KW - Properties

KW - Polyamide synthesis

U2 - 10.1016/0032-3861(84)90247-7

DO - 10.1016/0032-3861(84)90247-7

M3 - Article

SN - 0032-3861

VL - 25

SP - 1755

EP - 1758

JO - Polymer

JF - Polymer

IS - 12

ER -

Nylon 4,I: an amorphous polyamide

Abstract

Keywords

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