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Synthesis of Lignin-Based Polyurethane and Its Properties

Quan Liu

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Abstract

Lignin based polyurethane was synthesized by using lignin, 2,4-tolulene diisocyanate(2,4-TDI) and hexamethylene diisocyanate(HDI),its properties were determined.The study shows that by hydroxypropyl modification lignin is made polyester ether, it can react with diisocyanates to synthesize polyurethane.The ratio of —NCO to —OH affects differently the properties of lignin based polyurethane synthesized by TDI and HDI respectively.

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What this paper is about

Lignin based polyurethane was synthesized by using lignin, 2,4-tolulene diisocyanate(2,4-TDI) and hexamethylene diisocyanate(HDI),its properties were determined.The study shows that by hydroxypropyl modification lignin is made polyester ether, it can react with diisocyanates to synthesize polyurethane.The ratio of —NCO to —OH affects differently the properties of lignin based polyurethane synthesized by TDI and HDI respectively.

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Available abstract

Lignin based polyurethane was synthesized by using lignin, 2,4-tolulene diisocyanate(2,4-TDI) and hexamethylene diisocyanate(HDI),its properties were determined.The study shows that by hydroxypropyl modification lignin is made polyester ether, it can react with diisocyanates to synthesize polyurethane.The ratio of —NCO to —OH affects differently the properties of lignin based polyurethane synthesized by TDI and HDI respectively.

Key concepts: Polyurethane, Lignin, Hexamethylene diisocyanate, Materials science, Ether, Polyester, Polymer chemistry, Organic chemistry

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