High-Strength, Self-Healing, Recyclable, and Catalyst-Free Bio-Based Non-Isocyanate Polyurethane

被引：66

作者：

Zhang, Bowen ^{[1
,2
]}

Yang, Xinxin ^{[3
]}

Lin, Xiangyu ^{[3
]}

Shang, Hongyi ^{[3
]}

Liu, Qigang ^{[1
]}

Wang, Hehan ^{[1
]}

Liu, Shiwei ^{[1
,4
]}

Xu, Xu ^{[2
]}

Dong, Fuhao ^{[3
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Chem Engn, Key Lab Multiphase Flow React & Separat Engn Shand, Qingdao 266042, Shandong, Peoples R China

[2] Nanjing Forestry Univ, Coll Chem Engn, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Jiangsu Prov Key Lab Chem & Utilizat AgroForest Bi, Nanjing 210037, Jiangsu, Peoples R China

[3] Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Natl Forestry & Grassland Adm,Natl Engn Res Ctr Lo, Nanjing 210042, Jiangsu, Peoples R China

[4] State Key Lab Efficient Utilizat Coal & Green Chem, Qingdao 266042, Peoples R China

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2023年 / 11卷 / 15期

关键词：

high strength; non-isocyanate polyurethanes; self-healing; recyclability; bio-based; SHAPE-MEMORY; MECHANICAL PERFORMANCE; CYCLIC CARBONATES; DISULFIDE; NETWORK; CONVERSION; CO2; BIOREFINERY; TEMPERATURE; COPOLYMERS;

D O I：

10.1021/acssuschemeng.3c01181

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Non-isocyanate polyurethanes (NIPUs) from re-newable resources have attracted wide attention because of their remarkable benefits to sustainable development and green production. In this work, a strong, self-healing, and catalyst-free NIPU (ECMP) was prepared based on the hyperbranched bio-based cyclic carbonate (Ec-MTDA) synthesized through catalytic carbonization of 1,8-menthane diamine (MTDA) and CO2. The hyperbranched and rigid structures of ECMP enable improved mechanical properties that a high tensile strength of up to 34.9 MPa can be achieved. Benefiting from the dynamic trans-esterification reaction between the carbamate and hydroxyl groups, ECMP presents favorable self-healing, reprocessing properties, and shape memory. Notably, 91% of the original tensile strength can be recovered after self-healing behavior. In addition, abundant polar groups provide excellent adhesion properties for ECMP with a high shear strength of 7.09 MPa. This study provides a promising strategy for the design of bio-based NIPUs, which broadens their applications in printing, furniture, packaging, and other industries.

引用

页码：6100 / 6113

页数：14

共 72 条

[1] Cyclic limonene dicarbonate as a new monomer for non-isocyanate oligo- and polyurethanes (NIPU) based upon terpenes [J].