Photo-crosslinked Non-Isocyanate Polyurethane Acrylate (NIPUA) coatings through a transurethane polycondensation approach

被引：23
作者：
Boisaubert, Pierre [1 ]
Kebir, Nasreddine [1 ]
Schuller, Anne-Sophie [2 ]
Burel, Fabrice [1 ]
机构：
[1] Normandie Univ, Lab PBS, INSA Rouen Normandie, UMR CNRS 6270, FR 3038,Ave Univ, F-76801 St Etienne Du Rouvray, France
[2] Univ Haute Alsace, Inst Jean Baptiste Donnet, Lab LPIM, EA 4567, 3 Bis Rue Alfred Werner, F-68093 Mulhouse, France
来源：
POLYMER | 2020年 / 206卷
关键词：
Polyurethane; Non-isocyanate; NIPU; Transurethanization; Coating; Acrylates; UV-Curing; ORGANOCATALYTIC SYNTHESIS;
D O I：
10.1016/j.polymer.2020.122855
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A transurethane polycondensation pathway has been used to produce acrylate terminated Non-Isocyanate PolyUrethane (NIPUA) oligomers (A-Ol) with controlled molecular weights and chemical structures. These compounds were then photo-crosslinked under UV radiations to afford several NIPU acrylate coatings. The influence of the content in urethane functions as well as the chemical structures on the thermal and mechanical properties of the final coatings has been demonstrated. The obtained coatings exhibited thermal stabilities above 255 degrees C, Young modulus ranging from 2.6 to 9.2 MPa, tensile strength up to 11.8 MPa and elongation at break varying from 20 to 520%.
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页数：12
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