全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Yechao Yan , Xinhui Li ...
来源:[J].Chinese Geographical Science(IF 0.5), 2017, Vol.27 (3), pp.351-361Springer
摘要:Soil organic carbon (SOC) is a major component of the global carbon cycle and has a potentially large impact on the greenhouse effect. Paddy soils are important agricultural soils worldwide, especially in Asia. Thus, a better understanding of the relationship between SOC of paddy...
作者:Yechao Yan , Ying Wu ...
来源:[J].Polymer(IF 3.379), 2014, Vol.55 (5), pp.1128-1135Elsevier
摘要:Abstract(#br)The dibenzocyclooctyne end functionalized agent 1 was designed as atom transfer radical polymerization (ATRP) initiator. The ATRP was then explored on three types of monomers widely used in free radical polymerization: methyl methacrylate, styrene, and acrylates ( n ...
作者:... Liping Chang , Wenjuan Wang , Yechao Yan
来源:[J].Chinese Geographical Science(IF 0.5), 2015, Vol.25 (5), pp.602-611Springer
摘要:Abstract(#br)Gully erosion is one of the major causes of land degradation in most areas and attracts increasing attention from researchers. We monitored gullies in the Kebai region in Heilongjiang Province of China by using remote sensing data and found that gully density in...
作者:Yechao Yan , Yi Shi ...
来源:[J].Polymer(IF 3.379), 2013, Vol.54 (21), pp.5634-5642Elsevier
摘要:Abstract(#br)Though much attention has been paid to synthesis of cylindrical polymer brushes, it is still not easy to prepare well-defined brushes by a general approach. Herein, well-defined cylindrical polymer brushes with various side chains were synthesized via grafting-onto a...
作者:Yechao Yan , Xiaoqin Feng ...
来源:[J].Polymer(IF 3.379), 2012, Vol.53 (10), pp.1992-2000Elsevier
摘要:Abstract(#br)We reported that well-defined polymer brushes could be prepared efficiently via the grafting-onto approach and the polymer brushes grafted with poly(ethylene oxide) (PEO), poly(ε-caprolactone) (PCL) and mixed PEO/PCL have been obtained. Firstly, poly(glycidyl me...
作者:... Jingquan Sha , Lixia Wang , Yechao Yan
来源:[J].Inorganica Chimica Acta(IF 1.687), 2008, Vol.362 (6), pp.1957-1962Elsevier
摘要:Abstract(#br)A Co-monosubstituted Keggin polyoxometalate with an antenna ligand linked to the Co(II) center with a Co(II)-containing cation has been prepared. The title compound, formulated as {Co(H 2 O) 4 (4,4′-bpy)} 2 (4,4′-Hbpy) 2 [SiW 11 Co(4,4′-bpy)O 39 ] · 5H 2 O ...
作者:Yechao Yan , Yongming Chen
来源:[J].Reactive and Functional Polymers(IF 2.505), 2011, Vol.71 (8), pp.843-848Elsevier
摘要:Abstract(#br)A smart poly(ethylene oxide) polymer containing two thermally reversible groups located at the chain center (F2-PEO) was synthesized by a maleimide–furan (MF) [4 + 2] Diels–Alder (DA) reaction between one bis[(furan-2-yl)methyl] terephthalate (F2) and two maleim...
作者:Yechao Yan , Junfeng Qu
来源:[J].Soil Science(IF 1.051), 2018, Vol.183 (2), pp.66-73Wolters Kluwer
摘要:ABSTRACT: Plant carbon (plant-C) added to soil can accelerate or inhibit the decomposition of native soil organic matter by inducing positive or negative priming effects. The effect of different types of plant-C on the mineralization of the added carbon and of soil organic c...
作者:Yechao Yan , Yongming Chen
来源:[J].Macromolecular Chemistry and Physics(IF 2.386), 2013, Vol.214 (4), pp.470-477Wiley
摘要:Abstract(#br)The dibromomaleimide derivative, N ‐(4‐bromobutyl)‐dibromomaleimide (dBMIB), is found to be a highly efficient coupling agent to dimerize thiol‐terminated hydrophilic polymers by substituent reaction. When mono‐thiol poly(ethylene oxide) (PEO45...

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