Poly(neopentyl glycol 2,5-furandicarboxylate): A Promising Hard Segment for the Development of Bio-based Thermoplastic Poly(ether-ester) Elastomer with High Performance
Poly(neopentyl glycol 2,5-furandicarboxylate): A Promising Hard Segment for the Development of Bio-based Thermoplastic Poly(ether-ester) Elastomer with High Performance
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聚（新戊二醇2,5-呋喃二甲酸酯）：开发高性能生物基热塑性聚（醚酯）弹性体的一个有前途的硬细分市场
DOI：
10.1021/acssuschemeng.8b01105
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发表时间：
2018-08-01
影响因子：
8.4
通讯作者：
Zhu, Jin
中科院分区：
文献类型：
--
作者：
Chi, Dequan;Liu, Fei;Zhu, Jin
聚新戊二醇2,5-呋喃二甲酸酯（PNF）是一种由生物基2,5-呋喃二甲酸酯和新戊二醇合成的聚酯，具有较高的熔融温度和良好的结晶能力，是开发新型生物基热塑性聚醚酯弹性体（TPEE）的一个有前途的硬段。由此产生的TPEE，即PNF-PTMG，具有与石油基ppt - ptmg（即Hytrel， Dupont）相当的高性能。在现有的由生物基2,5-呋喃二羧酸（FDCA）衍生的聚酯中，PNF具有完美平衡的性能，即200℃的高熔融温度和良好的结晶能力，易于生长中至大尺寸的结晶球粒。基于动态力学分析和小角度x射线散射的表征表明，PNF-PTMG中存在两种结构域，即结晶PNF和非晶PNF-PTMG的混合物。这两个畴形成微相分离主要是由PNF的结晶引起的。通过将PTMG软段从30 wt%调整到60 wt%， PNF-PTMG的熔化温度、拉伸模量(E)和断裂伸长率（epsilon(b)）分别在180 ~ 134℃、738 ~ 56 MPa和38 ~ 1089%之间变化。更重要的是，当PTMG用量从50%增加到70%时，在200%应变下，形状回复率从57%增加到90%，显示出优异的弹性性能。这些结果表明，PNF是一种优秀的硬段，可以作为强物理交联，因此PNF- ptmg能够显示出与广泛商业化的ppt - ptmg相当的高性能。
With a high melting temperature and good crystallization ability, poly(neopentyl glycol 2,5-furandicarboxylate) (PNF), a polyester derived from bio-based 2,5-furandicarboxylic acid and neopentyl glycol, has been proposed and proved to be a promising hard segment for the development of novel bio-based thermoplastic poly(ether-ester) elastomer (TPEE). The resulting TPEE, namely PNF-PTMG, has high performance comparable to the petroleum-based counterpart PBT-PTMG (i.e., Hytrel, Dupont). Among all of the existing polyesters derived from bio-based 2,5-furandicarboxylic acid (FDCA), PNF has perfectly balanced properties, namely, a high melting temperature of 200 degrees C and a good crystallization ability to easily grow medium to large-size crystalline spherulites. Characterizations based on dynamic mechanical analysis and small-angle X-ray scattering suggest that there are two domains in PNF-PTMG, the crystalline PNF and a mixture of amorphous PNF and PTMG. These two domains form microphase separation induced mainly by the crystallization of PNF. By adjusting the PTMG soft segment from 30 to 60 wt%, PNF-PTMG shows a melting temperature, tensile modulus (E), and elongation at the break (epsilon(b)) ranging from 180 to 134 degrees C, 738 to 56 MPa, and 38 to 1089%, respectively. More importantly, the shape recovery ratios increase from 57 to 90% at 200% strain when the amount of PTMG increases from 50 to 70 wt%, indicating excellent elastic property. These results indicate that PNF is an excellent hard segment to serve as a strong physical cross-link so that PNF-PTMG is able to display high performance comparable to extensively commercialized PBT-PTMG.