Sustainable thermoplastic elastomers produced via cationic RAFT polymerization,Polymer Chemistry

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Sustainable thermoplastic elastomers produced via cationic RAFT polymerization
Polymer Chemistry ( IF 4.1 ) Pub Date : 2021-1-13 , DOI: 10.1039/d0py01640c
Scott W. Spring _{1,

2,

3,

4} , Red O. Smith-Sweetser _{1,

2,

3,

4} , Stephanie I. Rosenbloom _{1,

2,

3,

4} , Renee J. Sifri _{1,

2,

3,

4} , Brett P. Fors _{1,

2,

3,

4}

Affiliation

Plastic production continually increases its share of global oil consumption. Thermoplastic elastomers (TPEs) are a necessary component of many industries, from automotive and construction to healthcare and medical devices. To reduce the environmental burden of TPE production on the world, we developed two new ABA triblock copolymers synthesized through cationic reversable addition–fragmentation chain transfer (RAFT) polymerization from renewable monomers. Using poly(isobutyl vinyl ether) (PIBVE) as the soft block and either poly(p-methoxystyrene) (PMOS) or poly(2,3-dihydrofuran) (PDHF) as the hard blocks, we produced triblock copolymers with varying volume fractions and characterized their material properties. PDHF-PIBVE-PDHF is sourced almost entirely from simple alcohols and exhibits mechanical properties comparable to those of commercial TPEs. This effort demonstrates the utility of cationic RAFT for the production of sustainable TPEs.

中文翻译：

通过阳离子RAFT聚合生产的可持续热塑性弹性体

塑料生产持续增加其在全球石油消耗中的份额。从汽车和建筑业到医疗保健和医疗设备，热塑性弹性体（TPE）是许多行业的必要组成部分。为了减轻全世界TPE生产的环境负担，我们开发了两种新的ABA三嵌段共聚物，它们是通过阳离子可逆加成-断裂链转移（RAFT）聚合反应由可再生单体合成的。使用聚（异丁基乙烯基醚）（PIBVE）作为软嵌段，使用任一聚（p-甲氧基苯乙烯）（PMOS）或聚（2,3-二氢呋喃）（PDHF）作为硬嵌段，我们生产了具有不同体积分数的三嵌段共聚物，并表征了它们的材料性能。PDHF-PIBVE-PDHF几乎完全来自简单的醇，其机械性能可与市售TPE媲美。这项工作证明了阳离子RAFT在生产可持续TPEs中的实用性。

更新日期：2021-01-20

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