Facile modification of hydroxyl group containing macromolecules provides autonomously self-healing polymers through the formation of dynamic Schiff base linkages

聚合物 生物相容性 乙烯醇 表面改性 材料科学 高分子 高分子化学 化学改性 化学工程 化学 复合材料 生物化学 工程类 冶金
作者
Tamás Takács,Mohamed M. Abdelghafour,Łukasz Lamch,Imre Szenti,Dániel Sebők,László Janovák,Ákos Kukovecz
出处
期刊:European Polymer Journal [Elsevier BV]
卷期号:168: 111086-111086 被引量:13
标识
DOI:10.1016/j.eurpolymj.2022.111086
摘要

Self-healing polymers are the next-generation materials for high-performance structures and play a major role in the field of study and research in materials. Biopolymers with biodegradability and biocompatibility, for understandable reasons, are increasingly becoming the focus of attention. Since numerous natural and synthetic polymers are known to contain free hydroxyl groups in their repeating units, the appropriate modification of these macromolecules through their OH groups can be applied for many different polymers. Here, we used poly(vinyl alcohol) (PVA) as model macromolecule with OH groups and reported the synthetic process and modification possibility of this biocompatible polymer. A series of modified PVA samples were synthesized by functionalization with 4-formylbenzoic acid (4-FBA) and 3,4-diaminobenzoic acid (3,4-DABA) via Steglich esterification reaction, thus, the obtained polymer contains both aldehyde and amino groups which are able to form autonomously self-healing polymer via Schiff base reaction. ATR-FTIR measurements confirmed the successful modification of the initial PVA, while optical microscopy, scanning electron microscopy, and X-ray micro-computed tomography (micro-CT) measurements verified the self-healing ability of the polymer without the need for any external stimulus or healing agent. According to the mechanical and thermoanalytical testing, the synthesized polymer shows not only the characteristics of pristine PVA (thermoplastic, biocompatible, biodegradable) but also has advantageous mechanical properties (elasticity, relatively high extensibility) that can be tuned by varying the degree of functionalization. The aforementioned synthetic procedure offers a simple solution for the functionalization of OH group containing polymers, even with low (1-–3 mol%) hydroxyl group content. In this work, the first candidate of a new class of functional polymers is demonstrated that may have promising potential applications in the field of biomedicine or could be used as structural components such as coatings and medical implants.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
研友_LwlAgn完成签到,获得积分10
1秒前
陈昊完成签到,获得积分10
9秒前
10秒前
tian发布了新的文献求助10
12秒前
15秒前
15秒前
龙舞星完成签到,获得积分10
16秒前
17秒前
王涉发布了新的文献求助10
19秒前
普鲁卡因发布了新的文献求助10
20秒前
量子星尘发布了新的文献求助10
22秒前
柚子完成签到,获得积分10
26秒前
27秒前
马儿饿了要吃草完成签到,获得积分10
27秒前
29秒前
sudor123456完成签到,获得积分10
34秒前
NXK发布了新的文献求助10
34秒前
打打应助普鲁卡因采纳,获得10
37秒前
39秒前
lii完成签到,获得积分10
39秒前
jiaolulu发布了新的文献求助10
45秒前
个性惜蕊完成签到,获得积分10
45秒前
48秒前
轩辕书白完成签到,获得积分10
49秒前
qinzhikai完成签到,获得积分10
53秒前
天真的冬瓜完成签到,获得积分10
54秒前
小溜溜完成签到 ,获得积分10
55秒前
普鲁卡因发布了新的文献求助10
56秒前
tian发布了新的文献求助10
57秒前
桃花源的瓶起子完成签到 ,获得积分10
1分钟前
平凡世界完成签到 ,获得积分10
1分钟前
YYLLTX完成签到,获得积分10
1分钟前
畅快山兰完成签到 ,获得积分10
1分钟前
gaoxiaogao完成签到,获得积分10
1分钟前
舒适怀寒完成签到 ,获得积分10
1分钟前
shenglll完成签到 ,获得积分10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
普鲁卡因发布了新的文献求助10
1分钟前
Liang完成签到,获得积分10
1分钟前
爱思考的小笨笨完成签到,获得积分10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038112
求助须知:如何正确求助?哪些是违规求助? 3575788
关于积分的说明 11373801
捐赠科研通 3305604
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022