Mechanical properties of melt-fabricated, drawn films of A–B–A triblock copolymers of poly(l-lactide) (A) and two types of polyethers (B)

IF 2.8 4区 工程技术 Q2 POLYMER SCIENCE Macromolecular Research Pub Date : 2024-06-19 DOI:10.1007/s13233-024-00271-9
Kazunari Masutani, Yasunori Yoshioka, Yoshiharu Kimura, Chan Woo Lee
{"title":"Mechanical properties of melt-fabricated, drawn films of A–B–A triblock copolymers of poly(l-lactide) (A) and two types of polyethers (B)","authors":"Kazunari Masutani,&nbsp;Yasunori Yoshioka,&nbsp;Yoshiharu Kimura,&nbsp;Chan Woo Lee","doi":"10.1007/s13233-024-00271-9","DOIUrl":null,"url":null,"abstract":"<div><p>High-molecular-weight ABA triblock copolymers (PLA–PEs–PLA), consisting of poly-<span>l</span>-lactide (PLLA: A) and two types of polyethers (PEs: B), i.e., poly(oxyethylene) (PEG: polyethylene glycol) and Pluronic<sup>®</sup> [PN: poly(oxyethylene)-<i>b</i>-poly(oxypropylene)-<i>b</i>-poly(oxyethylene)], were synthesized by ring-opening polymerization of <span>l</span>-lactide by using bis-hydroxyl-terminated PEs as macroinitiators. Polymer films of these block copolymers were fabricated by the conventional hot-pressing method and uniaxially cold drawn to five times at 80 °C. Evaluation of the mechanical properties of these films revealed that the drawn films can retain high strength (ca. 100 MPa) and improved flexibility (2 GPa in modulus). It was therefore evident that the drawn films of PLLA–PEs triblock copolymers are highly useful as flexible films that can be controlled by the PEs content.</p><h3>Graphical abstract</h3><p>The A–B–A triblock copolymers consisting of PLLA and polyethers (PE: PEG and PN) were synthesized by the ROP of <span>l</span>-lactide in the presence of telechelic PE as the macroinitiators. The drawn films of these block copolymers were found to compete with the conventional petroleum plastic films and exceed the current biobased and biodegradable polymer films in terms of toughness. Thus, the oriented copolymer films were shown to be highly useful for flexible PLLA-based films.</p>\n<div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":688,"journal":{"name":"Macromolecular Research","volume":"32 7","pages":"631 - 639"},"PeriodicalIF":2.8000,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Research","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13233-024-00271-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0

Abstract

High-molecular-weight ABA triblock copolymers (PLA–PEs–PLA), consisting of poly-l-lactide (PLLA: A) and two types of polyethers (PEs: B), i.e., poly(oxyethylene) (PEG: polyethylene glycol) and Pluronic® [PN: poly(oxyethylene)-b-poly(oxypropylene)-b-poly(oxyethylene)], were synthesized by ring-opening polymerization of l-lactide by using bis-hydroxyl-terminated PEs as macroinitiators. Polymer films of these block copolymers were fabricated by the conventional hot-pressing method and uniaxially cold drawn to five times at 80 °C. Evaluation of the mechanical properties of these films revealed that the drawn films can retain high strength (ca. 100 MPa) and improved flexibility (2 GPa in modulus). It was therefore evident that the drawn films of PLLA–PEs triblock copolymers are highly useful as flexible films that can be controlled by the PEs content.

Graphical abstract

The A–B–A triblock copolymers consisting of PLLA and polyethers (PE: PEG and PN) were synthesized by the ROP of l-lactide in the presence of telechelic PE as the macroinitiators. The drawn films of these block copolymers were found to compete with the conventional petroleum plastic films and exceed the current biobased and biodegradable polymer films in terms of toughness. Thus, the oriented copolymer films were shown to be highly useful for flexible PLLA-based films.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
聚(l-内酰胺)A-B-A 三嵌段共聚物(A)和两种聚醚(B)熔融拉伸薄膜的机械性能
高分子量 ABA 三嵌段共聚物(PLA-PEs-PLA)由聚乳酸(PLA:A)和两种聚醚(PEs:B)组成,即:聚(氧乙烯)(PEG:聚乙二醇)和 Pluronic® [PN:聚(氧乙烯)-b-聚(氧丙烯)-b-聚(氧丙烯)]、聚氧乙烯(PEG:聚乙二醇)和 Pluronic® [PN:聚氧乙烯-b-聚氧丙烯-b-聚氧乙烯]组成。这些嵌段共聚物的聚合物薄膜采用传统的热压法制造,并在 80 °C 下进行了五次单轴冷拔。对这些薄膜机械性能的评估表明,拉伸薄膜可以保持较高的强度(约 100 兆帕)和较好的柔韧性(模量为 2 千兆帕)。图解摘要在远链聚乙烯作为大引发剂存在的情况下,通过对 l-内酰胺进行 ROP 合成了由 PLLA 和聚醚(PE:PEG 和 PN)组成的 A-B-A 三嵌段共聚物。研究发现,这些嵌段共聚物拉伸的薄膜可与传统的石油塑料薄膜相媲美,而且在韧性方面超过了目前的生物基和生物可降解聚合物薄膜。因此,拉伸共聚物薄膜对基于聚乳酸的柔性薄膜非常有用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Macromolecular Research
Macromolecular Research 工程技术-高分子科学
CiteScore
4.70
自引率
8.30%
发文量
100
审稿时长
1.3 months
期刊介绍: Original research on all aspects of polymer science, engineering and technology, including nanotechnology Presents original research articles on all aspects of polymer science, engineering and technology Coverage extends to such topics as nanotechnology, biotechnology and information technology The English-language journal of the Polymer Society of Korea Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.
期刊最新文献
Biodegradable and antioxidant lignin-adsorbed polylactic acid microparticles for eco-friendly primary microparticles Discarded bamboo chopstick cellulose-based fibers for bio-based polybutylene succinate composite reinforcement Recent achievements in conjugated polymer-based gas sensors by side-chain engineering Antimicrobial polymer coatings on surfaces: preparation and activity Polymer-induced surface wrinkling and imine polymer-based doping of sol–gel zinc oxide in electrolyte-gated transistors
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1