Fenglei Bi, Jianqiang Shao, Zhenhao Xi, 等. Synthesis and characterization of copolymers of poly(m-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation[J]. 中国化学工程学报(英文版), 2016,24(9):1290-1297. DOI: 10.1016/j.cjche.2016.04.003.
-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation[J]. , 2016, 24(9): 1290-1297.
Fenglei Bi, Jianqiang Shao, Zhenhao Xi, 等. Synthesis and characterization of copolymers of poly(m-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation[J]. 中国化学工程学报(英文版), 2016,24(9):1290-1297. DOI: 10.1016/j.cjche.2016.04.003.DOI:
-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation[J]. , 2016, 24(9): 1290-1297.DOI: 10.1016/j.cjche.2016.04.003.
Synthesis and characterization of copolymers of poly(m-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation
摘要
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Abstract
Poly(
m
-xylylene adipamide)/poly(ethylene terephthalate) (MXD6/PET) copolymers are synthesized by melt copolycondensation with 1-5 wt% low molecular weight PET oligomers into the MXD6 oligomers at 260℃. FR-IR and
1
H NMR analysis results indicate that the interchange reaction has occurred between MXD6 oligomers and PET oligomers. The thermal behavior of copolymers shows that the melting temperature of MXD6/PET copolymers decreases with the increasing of amount of PET oligomers
while the crystallization temperature accordingly increases. And the equilibrium temperature
T
m
0
is evaluated to be 251.8℃ for the copolymers with 5 wt% PET oligomer adding
which is very close to that of neat MXD6. The tensile and impact strength of MXD6/PET copolymers are significantly improved than that of pure MXD6 by mechanical properties test
and the microfibril structure in the impact fracture sample's surface reveals the feature of ductile fracture.
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Keywords
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