张政朴
反应性和功能性高分子材料:1. 吸附分离功能高分子材料;2. 生物医用高分子材料。
个性化签名
- 姓名:张政朴
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师
- 职称:-
-
学科领域:
材料科学基础学科
- 研究兴趣:反应性和功能性高分子材料:1. 吸附分离功能高分子材料;2. 生物医用高分子材料。
张政朴,1969年毕业于南开大学化学系;1981年研究生毕业于南开大学化学系获硕士学位;1988~1990年英国兰卡斯特大学化学系访问学者;1992~1993年英国曼彻斯特大学化学系高级访问学者;现任南开大学高分子所功能高分子材料3室主任、教授、博士生导师;国际《International J. of Polymeric Materials》杂志编委;《离子交换与吸附》杂志编委;第9届(2000年,天津,中国)国际Polymers in Organic Chemistry会议主要组织者;第10届(2002年,San Diego, USA),第11届(2004年,Prague, Czech Republic)国际Polymers in Organic Chemistry会议学术会议顾问。主要研究方向:反应性和功能性高分子材料:1. 吸附分离功能高分子材料;2. 生物医用高分子材料。曾获天津市科技进步2等奖(1994年);国家计委、科技部、财政部联合颁发的国家“八?五”科技攻关重大科技成果奖(1996年);国务院颁发政府特殊津贴专家(1996年);杜邦科技创新奖(2000年);
-
主页访问
2616
-
关注数
0
-
成果阅读
410
-
成果数
10
张政朴, 林超, 张政朴*, 朱晓夏,
化学通报,2003(8):536~543,-0001,():
-1年11月30日
清除树脂是一种特殊的固相试剂。近五年,它们被广泛的用于平行液相法合成组合化学库,简化液相组合化学库的纯化操作。本文综述了清除树脂在纯化操作中的使用策略。根据清除纯化原理,介绍了共价键型和离子键型两类清除树脂。给出了清除树脂在组合化学中的具体应用实例。最后对清除树脂的发展作了展望。
清除树脂, 平行液相合成, 组合化学库, 纯化操作
-
90浏览
-
0点赞
-
0收藏
-
0分享
-
249下载
-
0评论
-
引用
【期刊论文】聚四氟乙烯纤维辐照接枝制备弱酸性离子交换剂及其对Cu2+的吸附*
张政朴, 张政朴**, 王志鹏, 吴强, 张宝贵, 张砚耕
高分子学报,2004,1(1):84~87,-0001,():
-1年11月30日
以聚四氟乙烯纤维为基体通过60Co辐射引发与丙烯酸接枝制备弱酸性阳离子交换纤维。产物功能基含量为3.06mmol/g,在pH=5时该纤维达到对Cu2+的最大动态吸附量为107.48mg/g。使用不同浓度HCl对饱和吸附铜的接枝纤维进行洗脱,证实该纤维对铜离子具有优异的解吸性能。
聚四氟乙烯,, 辐照接枝,, 离子交换纤维,, 铜离子
-
61浏览
-
0点赞
-
0收藏
-
0分享
-
190下载
-
0评论
-
引用
张政朴, 喻爱明, 张政朴†, 杨华铮, 张春香, 刘准
高等学校化学学报,1998,19(10):1608~1610,-0001,():
-1年11月30日
M icrow ave assisting the addition reaction of Wang resin bound secondary a mine 1 and isocyanatew as carried out for the first time. The reaction time coursew as determ ined by analyzing FT IR spect raob tained using the improved KB rpellet method by grinding down the resin beads priorto recording. The resu It s show ed that the react ion assisted by m icrow ave was accomp lished only in 12min, while the reaction without microw ave was completed in 210min.
固相有机反应,, 微波照射,, FT IR,, 树脂微球
-
41浏览
-
0点赞
-
0收藏
-
0分享
-
170下载
-
0评论
-
引用
【期刊论文】Asymmetric synthesis of α-amino acids using polymersupported chiral phase transfer catalysts
张政朴, Zhang Zhengpu a, , Wang Yongmer a, Wang Zhen a, Philip Hodge b, *
Reactive & Functional Polymers 41(1999)37-43,-0001,():
-1年11月30日
Polymer-supported quininium, cinchoninium and cinchonidinium salts were used as phase transfer catalysts for the asymmetric C-alkylation of N-diphenylmethyleneglycine t-butyl ester in the synthesis of chiral phenylalanine, alanine, valine and 2-aminopent-4-enoic acid. The influence of the alkylation conditions on the chemical yields and the enantiomeric excesses were studied. The highest enantiomeric excess obtained was 27%. Although the enantiomeric excesses obtained in the present work are lower than those obtained in the corresponding non-supported reactions, they are nevertheless significantly higher than those obtained in most other polymer-supported phase transfer catalysed asymmetric syntheses so far reported in the literature.
α-Amino acids, Polymer-supported catalysts, Asymmetric synthesis, Phase transfer catalysts
-
37浏览
-
0点赞
-
0收藏
-
0分享
-
244下载
-
0评论
-
引用
张政朴, Chao Lin, , Zhengpu Zhang, *, Jianfen Zheng, Miaomiao Liu, Xiao Xia Zhu*
Macromol. Rapid Commun. 2004, 25, 1719-1723,-0001,():
-1年11月30日
microspheres, polyacrolein, resins, supports, suspension polymerization
-
37浏览
-
0点赞
-
0收藏
-
0分享
-
386下载
-
0评论
-
引用
张政朴, Cai-Yan Lu, a, b, Xiu-Ping Yan, *a, Zheng-Pu Zhang, Zhi-Peng Wang a, and Li-Wen Liu b
J. Anal. At. Spectrom., 2004, 19, 277-281,-0001,():
-1年11月30日
of 0.01-50% v/v HCl, its sorption onto the surface of the PTFE fiber in the microcolumn, elution with 3% m/v KBH4 in 0.5% m/v KOH, hydride generation with 15% v/v HCl solution and determination with atomic fluorescence spectrometry. The alkaline KBH4 solution was employed not only as an efficient eluent but also as the reductant to produce selenide anion for subsequent hydride generation. With a consumption of 12.4ml of sample solution, a detection limit (3δ) of 4ng l-1 was achieved at a sample throughput of 26 samples h-1. The retention efficiency was 67%, being five times that obtained with a PTFE knotted reactor (KR). The linear ranges of the diagrams of signal intensity against sample loading flow rate, and sample loading time, were much wider than those achieved with a KR, offering more potential for obtaining high sensitivity by increasing sample loading rates and/or sample loading time. The precision for 11 replicate measurements of 0.5µg l-1 Se (IV) was 1.5% (RSD). The recoveries of Se (IV) from natural water samples varied from 96 to 108%. The concentration of Se (IV) in a certified reference material (NASS-5, sea-water) determined by the present method with a simple aqueous standard curve calibration was in good agreement with the certified value. The developed method was also successfully applied to the detection of Se (IV) in local river water, lake water and sea-water samples.
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
158下载
-
0评论
-
引用
张政朴, Zheng Pu ZHANG*, Zhi Peng WANG, Bao Gui ZHANG, Yan Geng ZHANG
Chinese Chemical Letters Vol. 14, No.6, pp 609-610, 2003,-0001,():
-1年11月30日
The polytetrafluoroethylene fiber grafted acrylic acid was used as a cation exchanger. The exchange capacity of the cation fiber is 3.06mmol/g. The maximum Cu2+ adsorption capacity is 107.48mg/g. It could be desorbed completely by 1mol/L HCl.
Polytetrafluoroethylene fiber,, acrylic acid grafting,, Cu2+, adsorption.,
-
37浏览
-
0点赞
-
0收藏
-
0分享
-
99下载
-
0评论
-
引用
张政朴, Ai Ming YU and Hua Zheng YANG*, Zhen Pu ZHANG
Chinese Chemical Letters Vol. 9, No.2, pp 139-142 1998,-0001,():
-1年11月30日
A general method for the solid phase synthesis of hydro-uracils and thiouracils is described. Resino ester 2 reacts with various primary amines to give secondary amines 3, which are converted to the resino ureas (thioureas) 4 by treatment with isocyanates (isothiocyanates). Prepa-ration of the hydro-uracils and thiouracils 5 is achieved by acidic cyclization-cleavage from the resin. The synthesis is designed to be amenable for structure based library approach to photosys-tem II D1 protein inhibitors.
Solid Phase Synthesis,, Hydro-Uracils and Thiouracils,, Photosynthesis Inhibitors
-
41浏览
-
0点赞
-
0收藏
-
0分享
-
106下载
-
0评论
-
引用
【期刊论文】Preparation and Properties of Self-reinforced L-and D, L-lactide Copolymer Rods
张政朴, Yu Shan HU, Zheng Pu ZHANG*, Dong SONG, Yong Mei WANG, Dong Ren BAI
Chinese Chemical Letters Vol. 11, No.11, pp. 1023-1026, 2000,-0001,():
-1年11月30日
Since highly crystalline poly (L-lactide) (PLLA) degrades rather slowly in a biological environment and the crystalline domains remaining after partial degradation of the implant material give rise to an inflammatory response of the surrounding tissue, L-and D, L-lactide copolymer [P(L-DL)LA] having a low crystallinity is preferred in surgical applications. The thermal transitions and the mechanical properties of P (L-DL) LA rods were discussed in this paper. It was found that the self-reinforced P (L-DL) LA [SR-P(L-DL)LA] was strong enough in terms of mechanical properties compared with the self-reinforced PLLA [SR-PLLA].
PLLA,, P (, L-DL), LA,, self-reinforcement,, bone fractures fixation.,
-
31浏览
-
0点赞
-
0收藏
-
0分享
-
179下载
-
0评论
-
引用
张政朴, Zhao-Hui Wang a, b, Zheng-Pu Zhang a, Zhi-Peng Wang a, Li-Wen Liu b, Xiu-Ping Yan a, ∗
Analytica Chimica Acta 514(2004)151-157,-0001,():
-1年11月30日
In this work, acrylic acid grafted PTFE fibers were prepared as a new packing material for flow injection (FI) on-line microcolumn preconcentration coupled with flame atomic absorption spectrometry (FAAS) for determination of trace lead and cadmium in environmental and biological samples. Effective preconcentration of trace cadmium and lead was achieved in a pH range of 3.5-6.5 on a microcolumn packed with the developed new packing material. The retained lead and cadmium were efficiently eluted, respectively, with 1.0mol/l HNO3 and 0.5mol/l HCl for on-line FAAS determination. The developed sorbent exhibited fairly fast kinetics for the adsorption of Pb (II) and Cd (II), permitting the use of high sample flow rates up to at least 10.8ml/min for the FI on-line microcolumn preconcentration system without loss of the retention efficiency. With a preconcentration time of 45 s at a sample loading flow rate of 10ml/min, the enhancement factor was found to be 49 for Pb and 73 for Cd at a sample throughput of 55h−1. The detection limits (3σ) was 0.26 and 0.10μg/l for Pb and Cd, respectively. The precision (RSD) for 11 replicate measurements was 1.9% at the 25μg/l Pb level, and 0.9% at the 10μg/l Cd level. The developed method was successfully applied to the determination of trace Pb and Cd in a variety of environmental and biological samples.
Acrylic acid grafted polytetrafluoroethylene fibers, Flow injection on-line preconcentration, Lead, Cadmium, Flame atomic absorption spectrometry
-
35浏览
-
0点赞
-
0收藏
-
0分享
-
129下载
-
0评论
-
引用