Production of polyurethane elastomer from highly reactive acetic acid lignin‐derived polyols with reduced molecular weights

Author(s):  
Tian He ◽  
Wenxiang Zhu ◽  
Mingyou Liu ◽  
Xiaofei Tian ◽  
Fangeng Chen
Holzforschung ◽  
2000 ◽  
Vol 54 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Xue-Jun Pan ◽  
Yoshihiro Sano

2013 ◽  
Vol 7 (5) ◽  
pp. 443-455 ◽  
Author(s):  
H. H. Wang ◽  
J. Mou ◽  
Y. H. Ni ◽  
G. Q. Fei ◽  
C. L. Si ◽  
...  

Weed Science ◽  
1968 ◽  
Vol 16 (4) ◽  
pp. 486-488 ◽  
Author(s):  
Eugene E. Hughes

Greenhouse studies on control of saltcedar (Tamarix pentandra Pall.), a problem phreatophyte, showed that when one of three hygroscopic compounds, polypropylenediol (a mixture of polypropylenediols with molecular weights ranging from 375 to 425) was added to water solutions of phenoxy herbicides, it significantly increased injury from most treatments. Injury to foliage from all herbicides tested, except the oil-soluble amine formulations (a mixture containing 80% tertiary dodecyl and 20% tertiary tetradecyl amine) of 2,4-dichlorophenoxyacetic acid (2,4-D), 2-(2,4,5-trichlorophenoxy) propionic acid (silvex), and 2,4-D plus 2,4,5-trichlorophenoxy acetic acid (2,4,5-T) (1:1), increased when polypropylenediol was added to the spray solution at 5% by volume. The increased activity was affected by the rate of the additive, temperature, humidity, and herbicide formulation.


2013 ◽  
Vol 130 (3) ◽  
pp. 1855-1862 ◽  
Author(s):  
Haihua Wang ◽  
Jing Zou ◽  
Yiding Shen ◽  
Guiqiang Fei ◽  
Jing Mou

2010 ◽  
Vol 103 (1) ◽  
pp. 293-302 ◽  
Author(s):  
Haihua Wang ◽  
Yonghao Ni ◽  
M. Sarwar Jahan ◽  
Zehua Liu ◽  
Thioni Schafer

2015 ◽  
Vol 36 (3) ◽  
pp. 173-181 ◽  
Author(s):  
Qinghua Feng ◽  
Heli Cheng ◽  
Fangeng Chen ◽  
Xuesong Zhou ◽  
Peng Wang ◽  
...  

2011 ◽  
Vol 311-313 ◽  
pp. 1514-1517
Author(s):  
Ming Hua Zhu ◽  
Gui Zhen Fang ◽  
Shi Yan Han ◽  
Hai Hong Rong ◽  
Jun Guo ◽  
...  

Lignin was extracted from Acanthopanax senticosus remainders after pharmaceutical production process, with acetic acid-water as extracting reagent. Four factors effects, namely reaction temperature from 160°C to 220°C, reaction time from 40 min to 100 min, acetic acid concentration from 50% to 80% and solid-liquid ratio from 1:40 to 1:5, were studied and optimized by a four-level orthogonal array design (OAD) on lignin antioxidant capacity. The results indicated the reaction temperature and reaction time were significant factors among these factors. At the same lignin solution concentration, the acetic acid lignin antioxidant capacity was better than that of Kraft lignin, but much lower than that of butylated hydroxyanisole (BHA).


Sign in / Sign up

Export Citation Format

Share Document