Synthesis and properties of segmented copolymers of polyphenylene ether and tetra-amide units

J. Krijgsman; Jan Feijen; R.J. Gaymans

doi:10.1002/masy.200350912

Synthesis and properties of segmented copolymers of polyphenylene ether and tetra-amide units

J. Krijgsman, Jan Feijen, R.J. Gaymans

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Abstract

Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) segments with terephthalic methyl ester endgroups (PPE-2T, 3100 g/mol), uniform crystallizable tetra-amide units based on nylon-6,T (T6T6T, 13 wt%) and dodecanediol (C12) as an extender were made via a polycondensation reaction. The PPE-2T/C12/T6T6T copolymers are semi-crystalline materials with a glass transition temperature (Tg) of 169°C, a melting temperature (Tm) of 268°C and a very high Tg/Tm ratio of 0.82. The modulus is high up to the Tg and the modulus in the rubbery plateau after injection moulding is 10 MPa. The materials are slightly transparent and have good solvent resistance, low water absorption and good processability. With DSC it was calculated that the crystallinity of T6T6T in the copolymer is around 70%. The undercooling (Tm-Tc) as measured by DSC is 18°C at a cooling rate of 20°C/min. With WAXD it was shown that the tetra-amide units remain partially organized in the melt.

Original language	Undefined
Pages (from-to)	135-146
Journal	Macromolecular symposia
Volume	199
Issue number	1
DOIs	https://doi.org/10.1002/masy.200350912
Publication status	Published - 2003

Keywords

Crystallization
high temperature materials
Mechanical properties
Segmented copolymers
Poly(2
6-dimethyl-1
4-phenylene ether)
IR-71926

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10.1002/masy.200350912

Cite this

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title = "Synthesis and properties of segmented copolymers of polyphenylene ether and tetra-amide units",

abstract = "Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) segments with terephthalic methyl ester endgroups (PPE-2T, 3100 g/mol), uniform crystallizable tetra-amide units based on nylon-6,T (T6T6T, 13 wt%) and dodecanediol (C12) as an extender were made via a polycondensation reaction. The PPE-2T/C12/T6T6T copolymers are semi-crystalline materials with a glass transition temperature (Tg) of 169°C, a melting temperature (Tm) of 268°C and a very high Tg/Tm ratio of 0.82. The modulus is high up to the Tg and the modulus in the rubbery plateau after injection moulding is 10 MPa. The materials are slightly transparent and have good solvent resistance, low water absorption and good processability. With DSC it was calculated that the crystallinity of T6T6T in the copolymer is around 70%. The undercooling (Tm-Tc) as measured by DSC is 18°C at a cooling rate of 20°C/min. With WAXD it was shown that the tetra-amide units remain partially organized in the melt.",

keywords = "Crystallization, high temperature materials, Mechanical properties, Segmented copolymers, Poly(2, 6-dimethyl-1, 4-phenylene ether), IR-71926",

author = "J. Krijgsman and Jan Feijen and R.J. Gaymans",

year = "2003",

doi = "10.1002/masy.200350912",

language = "Undefined",

volume = "199",

pages = "135--146",

journal = "Macromolecular symposia",

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publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Synthesis and properties of segmented copolymers of polyphenylene ether and tetra-amide units

AU - Krijgsman, J.

AU - Feijen, Jan

AU - Gaymans, R.J.

PY - 2003

Y1 - 2003

N2 - Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) segments with terephthalic methyl ester endgroups (PPE-2T, 3100 g/mol), uniform crystallizable tetra-amide units based on nylon-6,T (T6T6T, 13 wt%) and dodecanediol (C12) as an extender were made via a polycondensation reaction. The PPE-2T/C12/T6T6T copolymers are semi-crystalline materials with a glass transition temperature (Tg) of 169°C, a melting temperature (Tm) of 268°C and a very high Tg/Tm ratio of 0.82. The modulus is high up to the Tg and the modulus in the rubbery plateau after injection moulding is 10 MPa. The materials are slightly transparent and have good solvent resistance, low water absorption and good processability. With DSC it was calculated that the crystallinity of T6T6T in the copolymer is around 70%. The undercooling (Tm-Tc) as measured by DSC is 18°C at a cooling rate of 20°C/min. With WAXD it was shown that the tetra-amide units remain partially organized in the melt.

AB - Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) segments with terephthalic methyl ester endgroups (PPE-2T, 3100 g/mol), uniform crystallizable tetra-amide units based on nylon-6,T (T6T6T, 13 wt%) and dodecanediol (C12) as an extender were made via a polycondensation reaction. The PPE-2T/C12/T6T6T copolymers are semi-crystalline materials with a glass transition temperature (Tg) of 169°C, a melting temperature (Tm) of 268°C and a very high Tg/Tm ratio of 0.82. The modulus is high up to the Tg and the modulus in the rubbery plateau after injection moulding is 10 MPa. The materials are slightly transparent and have good solvent resistance, low water absorption and good processability. With DSC it was calculated that the crystallinity of T6T6T in the copolymer is around 70%. The undercooling (Tm-Tc) as measured by DSC is 18°C at a cooling rate of 20°C/min. With WAXD it was shown that the tetra-amide units remain partially organized in the melt.

KW - Crystallization

KW - high temperature materials

KW - Mechanical properties

KW - Segmented copolymers

KW - Poly(2

KW - 6-dimethyl-1

KW - 4-phenylene ether)

KW - IR-71926

U2 - 10.1002/masy.200350912

DO - 10.1002/masy.200350912

M3 - Article

SN - 1022-1360

VL - 199

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EP - 146

JO - Macromolecular symposia

JF - Macromolecular symposia

IS - 1

ER -