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A SYNTHETIC APPROACH FOR WATER SOLUBLE HYPERBRANCHED POLY(N,N-ETHYliDENEBIS(N-2-CHLOROACETYL ACRYLAMIDE)) WITH HIGH DEGREE OF BRANCHING VIA ATOM TRANSFER RADICAL POLYMERIZATION/SELF-CONDENSING VINYL POLYMERIZATION

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Chinese Journal of Polymer Science 2013年第7期31卷 1038-1045页

作者： li-bin Bai Rong-rong Zheng wen-liang li Yong-gang Wu 巴信武 Hai-jun Wang College of Chemistry and Environmental Science Hebei University Key Laboratory of Medical Chemistry and Molecular Diagnosis Ministry of EducationHebei University

A novel acrylamide A2B2＊（A = alkene, B＊ = alkyl chlorine） type inimer was obtained from commercially available 1,2-ethylenediamine, chloroacetyl chloride and acryloyl chloride. The as-prepared monomer can form water-soluble hyperbranched poly（N,N-ethylidene bis（N-2-chloroacetyl acrylamide））s （HPECA） through atom transfer radical polymerization/self-condensing vinyl polymerization method in the presence alkyl chlorine/CuCl/2,2-bipyridine activation system which can effectively suppress the gelation formation.1H-NMR spectra and dual detector size exclusion chromatography proved the hyperbranched structure indisputably, and the degree of branching was determined by the detailed analyses of 1H-NMR spectra. The trend of the degree of branching was in consistent with the result of Mark- Houwink exponent a. The experiment results suggested that the conversion was 67%, Mw = 13.2 x 104, Mark-Houwink a = 0.282 and the degree of branching = 64% when the reaction temperature was 120 ℃, reaction time = 168 h and N,N- ethylidene bis（N-2-chloroacetyl acrylamide）：Cu（I） = 50：0.62.

关键词： Hyperbranched polymers Self-condensing vinyl polymerization Atom transfer radical polymerization High degree of branching Water soluble.

Disassociation of a one-dimensional cold molecule via quantum scattering

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Communications in Theoretical Physics 2023年第12期75卷 147-155页

作者： wen-liang li Hai-Jing Song Tie-ling Song D L Zhou Institute of Physics Beijing National Laboratory for Condensed Matter PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China National Innovation Institute of Defense Technology AMSBeijing 100071China Department of Fundamental Science Space Engineering UniversityBeijing 101416China

Motivated by the recent experimental developments in ultracold molecules and atoms,we propose a simple theoretical model to address the disassociation,reflection,and transmission probability of a one-dimensional cold molecule via quantum ***,we show the Born approximation results in the weak interaction ***,by employing the lippmann-Schwinger equation,we give the numerical solution and investigate the disassociation’s dependence on the injection momentum and the interaction *** find that the maximum disassociation rate has a limit when increasing the interaction strengths and injection *** expect that our model can be realized in experiments in the near future.

关键词： cold molecule quantum scattering disassociation rate

Two-dimensional conjugated coordination polymer monolayer as anode material for lithium-ion batteries:A DFT study

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Chinese Chemical Letters 2024年第6期35卷 180-184页

作者： Xin-Tong Zhao Jin-Zhi Guo wen-liang li Jing-Ping Zhang Xing-Long Wu MOE Key Laboratory for UV light-Emitting Materials and Technology Northeast Normal UniversityChangchun 130024China Faculty of Chemistry Northeast Normal UniversityChangchun 130024China Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province Gannan Normal UniversityGanzhou 341000China

Nowadays,lithium-ion batteries(liBs)play a crucial role in modern society in the aspect of portable electronic devices and large-scale smart ***,the current performance of lithium-ion batteries has been unable to meet the growing expectations of society and scientific ***,we have synthetically investigated availability of 2D Ni-TABQ monolayer as anode based on DFT for liBs *** findings have demonstrated that 2D Ni-TABQ monolayer is a semiconductor with a small band gap of 0.2 eV,which suggest that the electronic property of 2D Ni-TABQ monolayer would take place an evident shift from semiconductor property to metallic property after li ***,we checked the stability of 2D Ni-TABQ monolayer and investigated the viability of exfoliation from bulk multilayer Ni-TABQ to form 2D Ni-TABQ monolayer in the light of exfoliation energy and binding *** continuously studied electrochemical properties of 2D Ni-TABQ monolayer with respect of theoretical specific capacity,li-ion diffusion barriers and open-circuit *** the charging process,2D Ni-TABQ monolayer can achieve a high specific capacity of 722 m Ah/g with an open-circuit voltage range from 1.12 V to 0.22 *** aforementioned results make the 2D Ni-TABQ monolayer a promising anode for liBs.

关键词： The first principles Density functional theory lithium-ion battery Anode material Two-dimensional material

Preparing highly entangled states of nanodiamond rotation and NV center spin

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Chinese Physics B 2024年第2期33卷 144-151页

作者：李文亮周端陆 Institute of Physics Beijing National Laboratory for Condensed Matter PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

A nanodiamond with an embedded nitrogen-vacancy(NV)center is one of the experimental systems that can be coherently manipulated within current *** between NV center electron spin and mechanical rotation of the nanodiamond plays a fundamental role in building a quantum network connecting these microscopic and mesoscopic degrees of *** we present a protocol to asymptotically prepare a highly entangled state of the total quantum angular momentum and electron spin by adiabatically boosting the external magnetic field.

关键词： nanodiamond NV center entanglement

A New Method for Synthesizing Hyperbranched Polymers with Reductive Groups Using Redox/RAFT/SCVP

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Chinese Journal of Polymer Science 2014年第4期32卷 385-394页

作者：白利斌 Kun Zhao Yong-gang Wu wen-liang li Su-juan Wang Hai-jun Wang 巴信武 Hong-chi Zhao College of Chemistry & Environmental Science Hebei University

The novel hyperbranced polymers containing reductive groups were successfully prepared and characterized using redox/reversible addition fragmentation chain transfer （RAFT）/self-condensing vinyl polymerization （SCVP） method. Several redox initiating chemicals such as Cu（III）/--CONH2, Ce（IV）/--CONH2 and Ce（IV）/--OH were chosen to increase the free radical generating rate, and the chain transfer agent （CTA） was used to reduce the molecular chain propagating rate, in order to obtain polymers with high degree of branching. Detailed analyses based on the molecular weight, α value and the degree of branching of polymers （DB） obtained from 1H-NMR spectra and multi detector size exclusion chromatography （MDSEC） suggested the acquiring of hyperbranced polyacrylamides with Cu（III）/--CONH2 and Ce（IV）/--CONH2 as initiator in the presence of the CTA. Meanwhile, the as-prepared poly（N-hydroxymethyl acrylamide）（PNHAM） with higher DB value （0.48） proved that using Ce（IV）/--OH as the initiator could increase the free radical generating rate and diminish the gap between the propagating rate and the initiation rate during the reaction procedure. In addition, the effect of oxidant concentration on the Mark-Houwink index （α） value and the DB was also studied.

关键词： Hyperbranched polymers Redox RAFT SCVP Free radical polymerization.

Electromagnetic wave absorption properties of Ba(CoTi)_(x)Fe_(12-2x)O_(19)@BiFeO_(3)in hundreds of megahertz band

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Chinese Physics B 2022年第8期31卷 612-620页

作者： Zhi-Biao Xu Zhao-Hui Qi Guo-Wu Wang Chang liu Jing-Hao Cui wen-liang li Tao Wang Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China The Institute of Effectiveness Evaluation of Flying Vehicle Beijing 100089China

The high-performance electromagnetic(EM)wave absorption material Ba(Co Ti)_(x)Fe_(12-2x)O19@Bi Fe O_(3)was prepared by solid-state reaction,and its EM wave absorption properties were deeply *** results revealed that Ba(Co Ti)x Fe12-2x O19@Bi Fe O_(3)could obtain excellent absorption properties in hundreds of megahertz by adjusting the Co^(2+)-Ti^(4+)*** best comprehensive property was obtained for x=1.2,where the optimal reflection loss(RL)value reaches-30.42 d B at about 600 MHz with thickness of 3.5 mm,and the corresponding effective absorption band covers the frequency range of 437 MHz-1 ***,the EM wave absorption mechanism was studied based on the simulation *** simulated results showed that the excellent EM wave absorption properties of Ba(Co Ti)_(x)Fe_(12-2x)O19@Bi Fe O_(3)mainly originated from the internal loss caused by natural resonance,and the interface cancelation further improved the absorption properties and resulted in RL peaks.

关键词： microwave absorption M-type ferrite high permeability impedance matching

Different Outcome of Myeloid Sarcoma with Spinal Cord Compression Preceding Acute Myeloid Leukemia:Report of Two Cases and Review of literatures

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Chinese Journal of Cancer Research 2010年第2期22卷 156-162页

作者： Qiang Yin Yang-yang Zhou Duo Chen wen-liang li Key Laboratory of Cancer Prevention and Therapy Department of Neurosurgery and Neuro-oncology Tianjin Medical University Cancer Hospital Tianjin 300060 China Department of Neurosurgery Shengjing Hospital Affiliated to China Medical University Shenyang China

Myeloid sarcomas （MS） preceding acute myeloid leukemia （AML） are rare, which presenting as acute spinal cord compression is even rare. Here we report two new cases of myeloid sarcoma patients, whose outcomes were different. Twenty-seven patients with spinal MS preceding AML have been reported to date, including the two cases presented in this article. Surgical decompression was performed in 25 of the 27 patients, and 23 of these received additional anti-AML therapy. Considering our patients and the published cases in the literature we suggest that immunohistochemical study plays an essential role in arriving at a correct diagnosis of MS, and that emergency surgery to resect spinal MS is an available treatment to make neural function recovery, and that the disease must be treated with intensive chemotherapy similar to that used to treat AML as soon as possible after resection or irradiation of the tumor.

关键词： Spine Myeloid sarcoma Immunhistochemistry Acute myeloid leukemia

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元代奴儿干的东征元帅府

内蒙古社会科学 2020年第5期41卷 73-79页

作者：梁文力南京大学历史学院江苏南京210023

元朝在东北边疆的奴儿干之地设东征元帅府(又称征东元帅府)作为军事镇戍机构。东征元帅府的设立时间约在元武宗至大元年到元文宗至顺二年之间,而非通常认为的世祖时期。除了制约黑龙江下游地区诸部族武装和镇压叛乱外,打捕海东青并保障... 详细信息

元朝在东北边疆的奴儿干之地设东征元帅府(又称征东元帅府)作为军事镇戍机构。东征元帅府的设立时间约在元武宗至大元年到元文宗至顺二年之间,而非通常认为的世祖时期。除了制约黑龙江下游地区诸部族武装和镇压叛乱外,打捕海东青并保障当地出产的珍贵皮货能够顺利入贡也是该元帅府的职责。东征元帅府的设立标志着元朝在黑龙江下游地区建立起了较为稳定的直接统治,不但促进了东北边疆与内地的物质文化交流,亦影响到明初奴儿干都司的建立。

关键词：东征元帅府奴儿干元朝镇戍

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江汉平原典型含水层水文地质参数反演

地球科学（中国地质大学学报） 2017年第5期42卷 727-733页

作者：陈晨文章梁杏李霞中国地质大学环境学院湖北武汉430074

含水层参数对于定性分析区域地下水资源评价、数值模拟及预报、开发利用与保护及科学管理具有重要意义,而江汉平原水文地质参数求解的研究却相对较少.2015年江汉平原1∶50 000水文地质调查项目完成杨林尾图幅与陆溪口图幅,选择杨林尾图... 详细信息

含水层参数对于定性分析区域地下水资源评价、数值模拟及预报、开发利用与保护及科学管理具有重要意义,而江汉平原水文地质参数求解的研究却相对较少.2015年江汉平原1∶50 000水文地质调查项目完成杨林尾图幅与陆溪口图幅,选择杨林尾图幅和陆溪口图幅中的4个代表性钻孔,分别做了3组抽水试验和一组压水试验.对抽水数据使用Dupuit公式法结合抽水稳定阶段数据求解含水层参数,同时利用Aquifer Test软件中Theis标准曲线法、直线图解法对抽水试验中非稳定条件下抽水数据对含水层参数求解,得到孔隙水含水层渗透系数及弹性给水度;利用压水试验工程规范求解基岩裂隙含水层的渗透系数.探讨了利用非稳定抽水试验条件下求解含水层参数方法的可行性及该方法的优势.计算结果表明:杨林尾镇浅层(20.264.55m)含水层渗透系数为0.075m/d,弹性给水度为5.8×10^(-2);深层(138160m)含水层渗透系数为9.89m/d,弹性给水度为2.3×10^(-5);陆溪口镇浅层(19.436.4m)含水层渗透系数1.26m/d,弹性给水度为1.1×10^(-1);基岩渗透系数为0.012m/d.通过结果对比分析发现对于单孔非稳定抽水试验,对前期水位降深数据筛选分析,同样可以利用非稳定井流理论反演含水层参数,结果比较可靠.

关键词：抽水试验压水试验解析法水文地质