Hydrogen bonding and thermoplastic elastomers – a nice couple with temperature-adjustable mechanical properties†,Soft Matter

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Hydrogen bonding and thermoplastic elastomers – a nice couple with temperature-adjustable mechanical properties†
Soft Matter ( IF 2.9 ) Pub Date : 2018-03-19 00:00:00 , DOI: 10.1039/c8sm00296g
Elisabeth Wittenberg _{1,

2,

3,

4,

5} , Andreas Meyer _{1,

2,

3,

4,

5} , Steffen Eggers _{1,

2,

3,

4,

5} , Volker Abetz _{1,

2,

3,

4,

5}

Affiliation

Styrene–butadiene copolymers are modified with varying fractions of benzoic acid moieties being able to perform hydrogen bonding. This is done by using a simple synthetic approach which utilizes click chemistry. Temperature-dependent dynamic mechanical properties are studied, and it turns out that even the apparently rather simple hydrogen bonding motif has a marked impact on the material properties due to the fact that it facilitates the formation of a supramolecular polymer network. Besides a glass transition, the investigated functionalized copolymers exhibit a second endothermic transition, known as a quasi-melting. This is related to the opening of the hydrogen bonding complexes. Additionally to dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), temperature-dependent infrared (IR) spectroscopy and small angle X-ray scattering (SAXS) are used to understand the structure–property relationships.

中文翻译：

氢键和热塑性弹性体–良好的结合以及可调节温度的机械性能†

苯乙烯-丁二烯共聚物可以通过不同比例的苯甲酸部分进行改性，从而能够进行氢键键合。这是通过使用利用点击化学的简单合成方法完成的。研究了随温度变化的动态力学性能，结果表明，即使是表面上相当简单的氢键基序也能促进超分子聚合物网络的形成，从而对材料性能产生显着影响。除了玻璃化转变，研究的功能化共聚物还表现出第二个吸热转变，称为准熔融。这与氢键合络合物的打开有关。除了动态力学分析（DMA），差示扫描量热法（DSC）外，

更新日期：2018-03-19

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