A NOVEL SBS COMPOUND VIA BLENDING WITH PS-B-PMBL DIBLOCK COPOLYMER FOR ENHANCED MECHANICAL PROPERTIES

Author:

Versteeg Friso G.1,Raharjanto Ariq1,Parisi Daniele1,Picchioni Francesco1

Affiliation:

1. Department of Chemical Engineering, Product Technology, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands

Abstract

ABSTRACT Styrene–butadiene–styrene (SBS) rubbers are one of the most frequently used thermoplastic elastomers globally. The upper operating temperature of SBS is limited by the glass transition temperature (Tg) of poly(styrene) (PS), circa 100 °C. This study demonstrates a noteworthy enhancement in the properties of SBSs by introducing a diblock copolymer consisting of styrene and α-methylene-γ-butyrolactone (α-MBL). Polymers derived from α-MBL exhibit exceptional thermal stability, attributable to a Tg of 195 °C. Notably, α-MBL, also recognized as Tulipalin A, is a biorenewable compound naturally found in tulips. This investigation encompasses both crosslinked and noncrosslinked blends of poly(styrene)-block-poly(α-methylene-γ-butyrolactone) diblock copolymer (PS-b-PMBL) and poly(styrene)-block-poly(butadiene)-block-poly(styrene) triblock copolymer, within the 0–20 wt% PS-b-PMBL range. Thorough examination using thermal analysis and linear shear rheology reveals that all blends surpass the properties of their pure SBS counterparts. Specifically, blending at 200 °C induces crosslinking between the polymers, yielding heightened Young’s modulus and complex viscosity, thereby resulting in a robust and rigid material compared with noncrosslinked blends. For noncrosslinked blends, an increase in strength is observed while maintaining commendable rubbery properties. Notably, the noncrosslinked blends permit the recycling of components (SBS and PS-b-PMBL) through the redissolving of rubber in tetrahydrofuran. These findings present a promising avenue for the enhancement of rubbers through the incorporation of biorenewable compounds.

Publisher

Rubber Division, ACS

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3