Synthesis of Novel Non-Isocyanate Polyurethane/Functionalized Boron Nitride Composites

被引：8

作者：

El Khezraji, Said ^{[1
,2
]}

Chaib, Manal ^{[1
,2
]}

Thakur, Suman ^{[2
]}

Raihane, Mustapha ^{[1
]}

Lopez-Manchado, Miguel A. ^{[2
]}

Verdejo, Raquel ^{[2
]}

Lahcini, Mohammed ^{[1
,3
]}

机构：

[1] Cadi Ayyad Univ, Fac Sci & Tech, IMED Lab, Ave Abdelkrim Elkhattabi,BP 549, Marrakech 40000, Morocco

[2] CSIC, Inst Ciencia & Tecnol Polimeros ICTP, C Juan de la Cierva 3, Madrid 28006, Spain

[3] Mohammed VI Polytech Univ, Chem & Biochem Sci CBS, Lot 660, Hay Moulay Rachid 43150, Ben Guerir, Morocco

来源：

POLYMERS | 2022年 / 14卷 / 19期

关键词：

polyhydroxyurethanes; boron nitride; non-isocyanate polyurethane; polymer composite; functionalization; CARBON-DIOXIDE; CYCLIC CARBONATES; FREE ROUTES; POLYURETHANE; OXIDE; NANOCOMPOSITES; EPOXIDES;

D O I：

10.3390/polym14193934

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(hydroxyurethanes) (PHUs) have been suggested as isocyanate-free, low-toxicity alternatives to polyurethanes (PUs). However, PHUs present low mechanical properties due to the presence of side reactions that limit the production of high-molar mass polymers. Here, we present the synthesis under mild conditions and atmospheric pressure of bi-cyclic carbonate monomer for the production of PHU nanocomposites with good physical properties. The kinetics of the bi-cyclic carbonate synthesis and its complete conversion to urethane were followed by FTIR. The addition of functionalized boron nitrate (f-BN) with sucrose crystals improved the thermal degradation temperature as well as the glass transition by approximately 20 degrees C and 10 degrees C, respectively. The storage modulus of PHU films gradually increases with the concentration of f-BN in the composite.

引用

页数：11

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