Formation of Ligno-Polyols: Fact or Fiction

被引：6

作者：

Ahvazi, Behzad ^{[1
,2
]}

Wojciechowicz, Olivia ^{[1
,3
]}

Xu, Ping ^{[1
]}

Ngo, Tri-Dung ^{[2
,4
]}

Hawari, Jalal ^{[1
,5
]}

机构：

[1] Natl Res Council Canada, Biotechnol Res Inst, 6100 Royalmount Ave, Montreal, PQ H4P 2R2, Canada

[2] InnoTech Alberta, 250 Karl Clark Rd, Edmonton, AB T6N 1E4, Canada

[3] Enerlab 2000 Inc, 1895 Ind, St Mathieu De Beloeil, PQ J3G 4S5, Canada

[4] Natl Res Council Canada, Ind Mat Inst, 75 Mortagne Blvd, Boucherville, PQ J4B 6Y4, Canada

[5] Polytech Montreal, Dept Civil Geol & Min Engn, 2500 Chemin Polytech, Montreal, PQ H3T 1J4, Canada

来源：

BIORESOURCES | 2017年 / 12卷 / 03期

关键词：

Lignin; Polyester polyol; Ligno-polyol; P-31 NMR spectroscopy; 2D HMQC; FTIR; RIGID POLYURETHANE FOAMS; NMR-SPECTROSCOPY; ENGINEERING PLASTICS; THERMAL-PROPERTIES; KRAFT LIGNIN; SENSITIVITY IMPROVEMENT; SUCCESSIVE EXTRACTION; ALCELL(R) LIGNIN; ORGANIC-SOLVENTS; IDENTIFICATION;

D O I：

10.15376/biores.12.3.6629-6655

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The physical and chemical characteristics of several lignin-polyol blends were investigated by qualitative and quantitative methods from the view of biobased polyurethane applications. Four differently isolated biomass lignins from forestry and agricultural residues were blended with polyester polyol, and one was blended with polyethylene glycol. The isolated products were examined thoroughly to elucidate the subsequent lignin and polyol interactions during the premixing stage of biobased polyurethane formulation. Polyol was detected in lignin even after vigorous washings with several organic solvents and Soxhlet extraction. The experimental data coupled with two-dimensional heteronuclear multiple quantum coherence (HMQC) and nuclear magnetic resonance (NMR) spectroscopy confirmed the formation of ligno-polyols via strong intermolecular attractions, as well as some linkages between several lignin hydroxyl and polyol functional groups.

引用

页码：6629 / 6655

页数：27

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