%0 Journal Article
%T Microstructure-Property Relationship in Self-Crosslinked Non-Derivative Acetic Acid Lignin-Containing Polyurethane Membranes
%A Baojian Liu
%A Zhongjin Li
%A Haihua Wang
%J Green and Sustainable Chemistry
%P 162-174
%@ 2160-696X
%D 2014
%I Scientific Research Publishing
%R 10.4236/gsc.2014.43021
%X <div style=\"text-align:justify;\">
	<span style=\"font-family:Verdana;line-height:1.5;\">With the assistance of different solvents, self-crosslinked
acetic acid lignin-containing polyurethane (LPU) membranes were synthesized. Compared
with tetrahydrofuran and dioxane, N, N-dimethylacetamide with stronger
polarity together with higher boiling point was demonstrated to be beneficial
for preparing LPU particles of smaller size and enhanced binding force. It was
also found that lignin domain can interpenetrate into polyurethane domain well
with 43.3% lignin addition, resulting in enhanced phase mixing and better
performance. In addition, relative homogeneous and smooth LPU membrane can be
obtained with 2% TMP addition, while stress crack took place when TMP content was
greater than 3%.</span>
</div>
%K Polyurethane
%K Phase Behavior
%K Acetic Acid Lignin
%K Membrane
%K Microstructure
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=48923