A Novel Multiblock Poly(ester urethane) Based on Poly(butylene succinate) and Poly(ethylene succinate-co-ethylene terephthalate)

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• 作者：Hong-Bing Chen ; Xiu-Li Wang ; Jian-Bing Zeng ; Ling-Ling Li ; Feng-Xia Dong ; Yu-Zhong Wang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2011
• 出版时间：February 16, 2011
• 年：2011
• 卷：50
• 期：4
• 页码：2065-2072
• 全文大小：882K
• 年卷期：v.50,no.4(February 16, 2011)
• ISSN：1520-5045

文摘

A novel multiblock poly(ester urethane) (PBESTU) was synthesized through chain-extension reaction of hydroxyl-terminated poly(butylene succinate) (PBS鈭扥H) and poly(ethylene succinate-co-ethylene terephthalate) (PETS鈭扥H), using toluene-2,4-diisocyanate (TDI) as chain extender. The chemical structure and molecular weight of PBESTUs were characterized by ¹H NMR, intrinsic viscosity, and GPC. The thermal behaviors were investigated by DSC and TGA. The resulting copolymers, PBESTUs, have a sole glass transition temperature (T_g), which indicated that the two segments, PETS and PBS, were well compatible in the amorphous phase. PETS segment enhanced the thermal degradation temperature of PBESTUs. The DSC and WAXD results showed that PBS segment made great contribution to the crystallization of PBESTUs. PBESTUs possessed excellent mechanical properties according to tensile testing.