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Citation: Ying Zhe, Liu Wenzhong, Han Xiaozu, Cheng Xian, An Yuguo. SYNTHESIS AND DYNAMIC MECHANICAL PROPERTIES OF POLYESTER-POLYESTER SEGMENTED COPOLYMERS[J]. Chinese Journal of Applied Chemistry, ;1992, 9(6): 81-84. shu

SYNTHESIS AND DYNAMIC MECHANICAL PROPERTIES OF POLYESTER-POLYESTER SEGMENTED COPOLYMERS

Ying Zhe ¹ ,
Liu Wenzhong ^1,, ,
Han Xiaozu ¹ ,
Cheng Xian ² ,
An Yuguo ²

1.
1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
2.
2. Institute of Metal Research, Academia Sinica, Shenyang

Corresponding author: Liu Wenzhong,
Received Date: 21 May 1991
Available Online: 7 May 1992

A series of polyester-polyester segmented copolymers were synthesized by condensation of hydroxy-terminated poly(ethylene adipate) and dimethyl phthalate or isophthalie aeid and ethylene glycol using manganese acetate, titanium dioxide and titanium-potassium oxalate as eatalysts. The copolymers were characterized by swolling test,molecular weight and NMR measurements. The relationship between dynamie mechanical properties, erystalinity and component of the segmented copolymers was investigated. The results show that the crystalinity of poly(ethylene phthalate) chains in segmented copolymer may be destroyed by the added isophthalic acid, which makes the segmented copolymer be a good damping material with tanδ_max1.37).
- Poly(ethylene phthalate),
- hydroxy-terminated poly(ethylene adipate),
- block copolymer,
- dynamic mechanical property,
- damping material
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