Fluorinated waterborne shape memory polyurethane urea for potential medical implant application
Fluorinated waterborne shape memory polyurethane urea for potential medical implant application
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氟化水性形状记忆聚氨酯脲在医疗植入物中的潜在应用
DOI：
10.1002/app.37862
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发表时间：
2013-01
影响因子：
3
通讯作者：
Zhongyu Hou
中科院分区：
文献类型：
--
作者：
Zi Wang;Zhongyu Hou
以聚己内酯二醇、全氟聚醚（PFPE）二醇、二羟甲基丙酸、异佛尔酮二异氰酸酯、乙二胺（EDA）和二乙烯三胺（DETA）为原料，合成了一系列交联含氟水性形状记忆聚氨酯脲（PUU）离聚体。研究了软段中PFPE含量和交联度对PUU分子结构和膜性能的影响。差示扫描量热法表明，这些Tm型形状记忆PUU的转变温度可以通过PFPE重量百分比和EDA/DETA比率在33 ° C和44°C之间的范围内微调，覆盖体温范围。虽然在半结晶软段中引入无定形的含氟单元会影响线性结构PUU的形状记忆性能，但以DETA为三官能扩链剂引入交联结构后，在100%拉伸变形下仍能保持较高的应变恢复率（90%以上）。此外，通过对红外光谱中羰基伸缩区的分析，讨论了氢键与这些性质以及热稳定性的关系。© 2012 Wiley Periodicals，Inc. J.应用聚合物科学，2013
A series of crosslinked fluorinated waterborne shape memory polyurethane urea (PUU) ionomers were synthesized from polycaprolactone diol, perfluoropolyether (PFPE) diol, dimethylolproionic acid, isophorone diisocyanate, ethylenediamine (EDA), and diethylenetriamine (DETA). The effect of PFPE content in the soft segment and the degree of crosslinking on the molecular structure and the properties of these PUU films was examined and studied. Differential scanning calorimetry showed that the transition temperature for these Tm type shape memory PUU could be fine tuned by PFPE weight percentage and EDA/DETA ratio in the range between 33 and 44°C, covering the range of body temperature. Although incorporating amorphous fluorinated units into semicrystalline soft segment compromised the shape memory performance of PUU with linear structure as expected, the introduction of crosslinking structure using DETA as a trifunctional chain extender could still retain quite high strain recovery rate (above 90%) at 100% stretching deformation. Furthermore, the relationship of these properties as well as thermal stability with hydrogen bonding was also discussed by evaluation of the carbonyl stretching region in Fourier transform infrared spectra. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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DOI：
10.1002/pola.20732
发表时间：
2005-06
期刊：
Journal of Polymer Science Part A
影响因子：
--
作者：
D. Yang;C. Hu;S. Ying
通讯作者：
D. Yang;C. Hu;S. Ying
DOI：
10.1021/la803089y
发表时间：
2009-01
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Wanling Wu;Qingzeng Zhu;Fengling Qing;C. Han
通讯作者：
Wanling Wu;Qingzeng Zhu;Fengling Qing;C. Han
影响因子：
16.6
作者：
Alteheld, A;Feng, YK;Lendlein, A
通讯作者：
Lendlein, A
影响因子：
4.6
作者：
Li-Fen Wang
通讯作者：
Li-Fen Wang
影响因子：
3.4
作者：
Behl, Marc;Lendlein, Andreas
通讯作者：
Lendlein, Andreas