A fully bio-based waterborne polyurethane dispersion from vegetable oils: From synthesis of precursors by thiol-ene reaction to study of final material

被引：100

作者：

Fu, Changqing ^{[1
,2
]}

Zheng, Zitong ^{[2
]}

Yang, Zhe ^{[2
]}

Chen, Yiwang ^{[1
]}

Shen, Liang ^{[2
]}

机构：

[1] Nanchang Univ, Inst Polymers, Nanchang 330031, Peoples R China

[2] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2014年 / 77卷 / 01期

关键词：

Waterborne polyurethane; Bio-based; Diisocyanates; Chain extender; Thiol-ene; BUILDING-BLOCKS; RENEWABLE RESOURCES; POLYMER SCIENCE; PLANT OILS; COATINGS; POLYOLS; NANOPARTICLES; RESIN;

D O I：

10.1016/j.porgcoat.2013.08.002

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new linear saturated terminal diisocyanate was synthesized from castor oil-derived undecylenic acid by thiol-ene coupling (TEC) and Curtius rearrangement. The structure of the diisocyanate was carefully examined using Fourier transform infrared spectroscopy, H-1 nuclear magnetic resonance (NMR), and C-13 NMR. This diisocyanate was used as a starting material for the preparation of a fully bio-based waterborne polyurethane dispersion (BPUD) by reacting with castor oil and castor oil-based carboxylic acid-type hydrophilic chain extender, which was prepared from castor oil by using 3-mercaptopropionic acid via TEC. The thermal/mechanical properties of the formed BPUD film were characterized via differential scanning calorimetry, thermogravimetric analysis, tensile test, hardness test, and water resistance test. The fatty acid-derived diisocyanate and the castor oil-based hydrophilic chain extender were used to produce BPUD with favorable properties. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：53 / 60

页数：8

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