最新刊期
卷 30 ， 期 6 ， 2017
- 摘要：Dye-sensitized solar cells(DSSC) have been paid extensive attention because of its low cost,less pollution and easy fabrication. The electrolyte is an important part of DSSC for the regeneration of dye and the hole transportation. In this paper,a brief introduction about the structure and working principle of DSSC were given, and the problems existing in conventional liquid electrolyte were pointed out. The application of novel solid polymer electrolyte, gel polymer electrolyte and microporous polymer electrolyte in DSSC were reviewed. The development of polymer electrolyte in DSSC was discussed at last.关键词：Dye-sensitized solar cells;Polymer electrolyte;Power conversion efficiency;Ionic conductivity
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发布时间：2022-09-06 - 摘要：Molecular composite is a kind of rigid/flexible polymeric composite where polymer components are dispersed at the molecular level. Molecular composite extends the concept of fiber-based macro-composite to the molecular level. It has the advantages of high strength and high modulus. As a category of high-performance composites,the research and development of molecular composites is of great significance to the development and innovation of high-performance composites. In this paper,the composition,preparation methods and the compatibility control of polymer pairs in molecular composite were introduced. Moreover, the details of the present research of molecular composite were well described. Finally, some problems deserving further research of molecular composites were presented and the development prospect of molecular composites was prospected.关键词：Molecular composite;Rigid reinforcement;Flexible matrix;Dispersion;Compatibility
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发布时间：2022-09-06 - 摘要：In recent years, graphene/polyaniline composites have attracted increasing attention of owing to the advantages of their extraordinary electrical, thermal,electrochemical and mechanical properties. We review the recent advances in the preparation of graphene/polyaniline composite, including in-situ polymerization, interfacial polymerization, self-assembly approach and solution mixing, etc. Graphene/polyaniline composites combine the advantages of graphene and PANI, and hence show various enhanced properties, which pave the way for their potential applications in many fields. The applications of graphene/polyaniline composite in supercapacitors,sensors,fuel cells and solar cells are discussed in detail.关键词：Graphene;Polyaniline;Composite;Supercapacitors;Sensors
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发布时间：2022-09-06 - 摘要：The characteristic of expansion monomer is no volume shrinkage during the polymerization process, even to produce volume expansion. This special performance has broad application prospects. Currently spiro compounds that can be used as expansion monomer mainly include spiro orthocarbonate (SOC),spiro orthoester (SOE) and bicyclic orthoester (BOE). Spiro orthoester (SOE) is discovered the first class of compounds capable of swelling polymerization. This article demonstrated the discovery, synthetic methods and polymerization reaction of spiro orthoesters, and reviewed their applications, then proposed their future developments.关键词：Spiro orthoester;Expansion compound;Polymerization;Application
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发布时间：2022-09-06 - 摘要：In this paper, sulfonated graphene (SG) as fillers mixed and coprecipitated with natural latex, the natural rubber (NR) composites filled with SG were prepared using traditional rubber manufacture. The structure and morphology of SG were tested. The mechanical property, abrasion resistance,gas resistance, and thermal property of vulcanized rubber were investigated. The results showed that there were abundance activity functional groups in the surfaces and less slice layer structure of sulfonated graphene. The mechanical and wear resistance properties of composite were improved, but the permeability and heat conductivity were fell. When the graphene addition amount was 2. 0% (wt) , the tensile strength of the composite was the largest, 27. 06MPa; wear volume was 0. 08cm3; thermal conductivity is 0.42W/Mk; permeability coefficient was 1. 98 × 10-4cm3/m2•d.关键词：Sulfonated graphene;Natural rubber;Mechanical property;Gas permeability;Thermal property
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发布时间：2022-09-06 - 摘要：Polyamide/polyaniline conductive fiber was prepared by in-situ polymerization, FTIR and microscope characterization showed that PANI had been coated on the surface of the fiber, and the conductivity of the composite fiber was tested, the single variable method was used to study the influence factors that aniline polymerized with different conditions for the conductivity of the fiber, and the effect of reaction temperature on the reaction process and the conductivity was discussed, the optimum conditions as follows: polyamide fiber was pre-treated by soaking in 30% HCOOH for 20min,aniline is 0. 8M,ammonium persulfate is 1M, doping agent is HCl (0. 8M),polymerized in ice-water bath for 4h. Finally, the conductivity of polyamide/polyaniline conductive fiber obtained can reach to 3. 7S/m.关键词：Polyamide;Polyaniline;Conductive fiber;In-situ polymerization
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发布时间：2022-09-06 - 摘要：In this study, the pre-organization system of molecularly imprinted polymer with oleanolic acid as template, 2-(trifluoromethyl) acrylic acid (TFMAA),methacrylic acid (MAA),acrylamide (AM) , and 4-vinylpyridine (4-VP) as functional monomers, chloroform, tetrahydrofuran (THF),ethanol,methanol,and acetone as solvents was studied by computational methods. The density functional theory (DFT) and ONIOM method was used to investigate the geometry optimization, active sites,natural bond orbital charges, binding energies of the imprinted molecule. The solvation energy of template and monomer in different solvent was calculated using self-consistent reaction field of polarizable con-tinuum model approach (CPCM). The theoretical results showed that the compound of the ratio of OA-TFMAA (1:1) had the highest binding energy (-70. 99kJ•mol-1) and the most stable structure, and the solvation energy for template and monomer in chloroform were lower than that in THF,ethanol,methanol,and acetone. The corresponding experimental results were used to verify the simulation results. Meanwhile,the polymers were characterized by using scanning electron microscopy, fourier transform infrared spectrum, and adsorption experiments. The experimental result is completely consistent with the theoretic analysis, which indicates that the computer simulations can provide a route to more efficient MIP design strategies.关键词：Molecular simulation;Oleanolic acid;Molecularly imprinted polymer
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发布时间：2022-09-06 - 摘要：With the development of information technology,lithium ion battery becomes well known due to its increasingly wide application. And the separator, as an important part of the lithium ion battery, therefore has attracted more and more attention. Because of the excellent mechanical properties,chemical stability and low cost,polyolefin separator has already become the choice of the most situation. The mini-review presented here summaries many aspects of polyolefin separator, including the preparation process (mainly covering the dry and the wet methods), different commercial products, commodity parameters, and as well as the post-modification methods for separator. Furthermore, the improved ways for the porosity,electrolyte wettability and thermal stability of polyolefin separator are also highlighted. The authors hope this mini-review will contribute to the understanding of the development progress of polyolefin separator.关键词：lithium ion battery;Polyolefin;Separator
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发布时间：2022-09-06 - 摘要：Click chemistry is a method for chemical synthesis which is simple,convenient,flexible and efficient. And it is a new and efficient way in modifying graphene,which has the characteristics of high efficiency and controllable active site. The click chemistry functional modification for graphene was divided into covalent bonding method and non-covalent bonding method. Covalent bonding method was subdivided into click functional edge and surface modification. In this paper, preparation method of the functional modified agent of the azide and the click reaction principle of the modified graphene were introduced, and the potential application of click chemistry functionalized graphene and graphene oxide polymer composite was summarized.关键词：Graphene;Graphene oxide;Click chemistry;Functionalization;Polymer composites
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发布时间：2022-09-06 - 摘要：In order to cultivate applied polymer talents, this paper explored the design and selection of experimental courses for polymer specialty. By optimizing the teaching curriculum system, teaching content, enriching the content and modeling of experimental teaching, the establishment of fine resources sharing of polymer experimental teaching platform and other aspects were explored, and achieved good teaching results..关键词：Polymer;Experiment;Applied talents
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发布时间：2022-09-06 - 摘要：The reformation of polymer material processing is one of the most important professional courses of polymer materials and engineering. While,it is difficult for the students to understand the process and principles of polymer materials processing technology only by analyzing them in the class without students' initiative participation. According to the characteristics of polymer materials and processing in our college,the application of computers in formula design, multimedia applications,case study and students interaction teaching can help students better understand abstract conceptions, such as processing process and principles of polymer materials. The way of teaching is more practical and the students' interest is stimulated by the way of theoretical explanation and examples demonstration. In this way,the students' abilities and the teaching efficiency are improved.关键词：Polymer materials processing;Formula design;Computer application
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发布时间：2022-09-06
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