最新刊期
卷 25 ， 期 1 ， 2012
- 摘要：The current trends and the perspective in polymer science, the examples in several areas of the progress of polymer science have been illustrated. The funding statistics of polymer program in NSFC and the guidance for 2012 fiscal year were released. The issues in preparing proposals for grants from NSFC were suggested.关键词：Polymer science;Trends and perspectives;Progress;Guidance for 2012
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发布时间：2022-09-18 - 摘要：Dissipative particle dynamics (DPD) is a mesoscopic simulation method which was first proposed in 1992 to study the properties of complex liquid. Because it involves hydrodynamics and behaves a higher calculating speed than other methods, now it has been one of the main simulation methods to research the hydrodynamic behaviors of complex liquid. This method has also become a bridge between the atomistic and macroscale level, and plays an important role in understanding the complex liquid properties. In this article, the developments of this simulation method and its applications during recent years have been fully reviewed. First, the improvements in these several years were summarized, and then the hot research areas were introduced in detail. As a computer experimental tool, this method can not only be used to predict the structure and properties of an equilibrium system, but also can be used to study the dynamics of a non-equilibrium process.关键词：Dissipative particle dynamics;Mesoscopic simulation;Phase separation
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发布时间：2022-09-18 - 摘要：DOPA, the secretion of marine mussels with high adhesive property, could be adsorbed to the surfaces of inorganic and organic materials. Further studies show that DOPA derivatives containing catechol groups also possess the strong adhesive property as DOPA shown. Polydopamine coating, as one kind of DOPA derivatives, has already been applied in many fields. Based on the above content, DOPA and its derivatives could be introduced into the design of polymer structure and make them like the secretion of marine mussels, which have applied in various fields. The exploration of the adhesion mechanism and the application in different fields of DOPA and its derivatives are reviewed in this paper.关键词：Dopa;DOPA derivatives;Biomimetic polymer;Adhesive property
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发布时间：2022-09-18 - 摘要：Surface acoustic wave (SAW) chemical sensor is a kind of vapor sensor with the characteristics of small size, good selectivity, fast response and so on, which can operate in situ and in real-time. Coating material plays a critical role in deciding the performance of sensor. In this paper, working principle and the force between sensitive membrane and gas were introduced. Then the choosing of coating material and influence factors were elaborated. Especially the classification and application of coating material were illustrated. that is organic polymer film, inorganic substance film, supermolecule film and complex film. At the same time, a comparation was also made. Lastly, the existing achievements were summarized and a brief discussion on the trend of research was given.关键词：Surface Acoustic Wave(SAW);Sensor;Coating material;Organic polymer
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发布时间：2022-09-18 - 摘要：Thiol-based click reaction had prominent advantages such as convenience, quickness, metal-free catalysis. Firstly, the reaction mechanism of thiol-based click reaction was introduced. Then, the conception and characteristics of some newly developed thiol-based click reactions in recent years were reviewed in details, followed by the potential applications of the reaction in molecular design and functional materials. Finally, some drawbacks and prospects of the reaction were also summarized.关键词：Thiol-based click reaction;Click chemistry;Molecular design;Application
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发布时间：2022-09-18 - 摘要：The conducting polymers with the nanostructure are clearly advantageous over their conventional counterparts because of their huge surface area, small size and quantum effects. Conductive polymer nanomaterials have a promise in biomedical application on the basis of the fact that neural tissue is sensitive to electric field and electrical stimulation.This article reviews various methods for synthesis of conducting polymers with nanostructure and their applications in biomedical field, focusing on hard-template, soft-template, template-free synthesis, and the formation mechanism of conducting polymer nanostructures by these methods. The potential of the conducting polymers with the nanostructures, such as nanotubes, nanowires, and nanoparticles, as nerve electrode coating materials and biological sensors are also summarized.关键词：Conductive polymer;Nanostructure;Neural probe;Biosensor.
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发布时间：2022-09-18 - 摘要：Cyclodextrins, composed of various D-glucopyranose structural units, are conically shaped molecule with tubular configuration derived from cyclic arrangement of the D-glucopyranose units. Theirs unique structures of exo-hydrophilicity and endo-hydrophobicity determine particular performances. Currently cyclodextrins and theirs derivatives are the most widely used in pharmacy, while less report occurs in treatment of environmental pollutants. The paper refers to the influence factors of cyclodextrins inclusion between theirs frameworks and pollutants, the methods to prepare cyclodextrin derivatives, reviews of their up-to-date researches on the treatment of polluted water, soil and atmosphere. It is proposed that they have a better application prospects in environmental treatment aspects, and the future research direction on environmental treatments is put forward.关键词：Cyclodextrin;Cyclodextrin derivatives;Pollution treatment;Organic contaminants;Heavy metals
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发布时间：2022-09-18 - 摘要：Supramolecular polymers are made of repeating units held together by only non-covalent bonds through monomers M2, which are different with those molecular polymers composed of repeating units held together by covalent bonds through monomers M1. Polymerizations include molecular polymerization and supramolecular polymerization. Supramolecular polymerization as one of the molecular self-assembly processes describes the formation of supramolecular polymer chain through non-covalent bonds. Due to the difference between molecular polymerization and supramolecular polymerization from monomers used, molecular recognition, polymerization reversibility and entropy-driving features, three main supramolecular polymerization mechanisms, linear chain growth, helical chain growth, and topological chain growth, were analyzed and discussed.关键词：Supramolecular polymers;Supramolecular polymerization;Linear chain growth;Helical chain growth;Topological chain growth
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发布时间：2022-09-18 - 摘要：With the development of nano-technology in the field of polymer, researchers pay attention to the condensed state of single polymer chain. Single polymer chains were existed in micro-particles with nanometer scale, and geometric entanglements were not founded between polymer chains. This article reviews the progress of single polymer chain in recent years. The preparation methods of single polymer chain are introduced, such as atomizer spraying, freeze-drying, microemulsion polymerization, reverse precipitation and surface film spreading, meanwhile the characterization methods of single polymer chain and computer simulation technique for the conformation of polymer chains are reviewed; in the last section, the application of single polymer chain and unimolecular micelles in preparation of metal nano-particles are represented and the coming research fields of single polymer chain are prospected.关键词：Single polymer chain;Template;Nano-particles;Atomic force microscopy
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发布时间：2022-09-18 - 摘要：Polylactic-acid(PLA) nanoparticles has advantages of controlled release of drug molecules, totarget sites, reduce side effect and improve therapeutic effect.It has a widely research and application perspective in drug delivery system. But the application of PLA nanoparticles is restricted because of hydrophobicity and single molecular chain.The researches of modified PLA nanoparticles for the drug delivery system are summarized.It focuses on the recent developments in resolving the existent problem of clinical application,ranging from hydrophilic modified to targeted modified.关键词：Polylactic acid;Nanoparticles;Modified
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发布时间：2022-09-18 - 摘要：Natural botanic fiber reinforced biodegradable composite is regarded as a green and environmental composite for its advantages such as excellent properties, environment-friendly and natural biodegradability. Among these various natural fibers, bamboo fiber which is not only abundant in resource and excellent in mechanical properties, but also has natural performances of antibacterial, deodorant, moisture absorption and desorption, UV resistance, was widely used in fabrication of such above mentioned composites. In this paper, the recent research status and development trend on properties of reinforced fiber and matrix, modification methods for bamboo fiber and degradable resins, fabrication technology, performance evaluation on physical-mechanical and degradation characteristics were reviewed in home and abroad. Furthermore, future investigating and developing trends in this field were prospected.关键词：Bamboo fiber;Modification;Fabrication technology;Biodegradable composites;Performance evaluation
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发布时间：2022-09-18 - 摘要：Ultra-high molecular weight polyethylene(UHMWPE) possesses outstanding properties. Carbon fiber(CF) and nickel carbon fiber(NiCF) filled UHMWPE blends of UHMWPE/CF, UHMWPE/NiCF and UHMWPE/EMMA/CF composites were prepared by gelation/crystallization method, and after then gamma ray irradiation was performed on which at room temperature. The attention was focused on the electrical and self-heating properties of composites. Such equipment as DSC, SEM, WAXS and DMA were utilized to measure and characterize the composites. Results demonstrated that minimum percolation threshold value of 3vol% was obtained for UHMWPE/NiCF composites with NiCF as filler. Suitable level of gamma ray irradiation is effective to improve both the PTC effect and self-heating properties of composites. The dielectric properties of composites revealed the relationship between AC resistivity, temperature and frequency.关键词：Ultra-high molecular weight polyethylene;PTC effect;Self-heating properties;Gamma ray irradiation
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发布时间：2022-09-18 - 摘要：With the increasingly serious energy and environmental issues, there is growing concern in the development and application of solar energy. Meanwhile, polymer solar cells get more and more attention while the application of inorganic solar cells is limited. In the polymer- based solar cells, cell efficiency is restricted by the donor material,the band gap and energy level are the main factors affecting its performance. The efficiency of the battery device can be regulated by researching and selecting a material which has suitable band gap and energy level. This article introduces the design principles and factors of the donor materials in solar cells, describes the research progress in the field during the past few years and developing prospects.关键词：Polymer solar cells;Donor materials;Band gap;Energy level
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发布时间：2022-09-18 - 摘要：As an important regenerated cellulose fiber, viscose fiber is a successful product because of its comfort and other excellent properties. Conventional viscose fiber industry was gradually shut down in developed countries due to its pollution during manufacturing. Now developing countries are the main producer of viscose fiber. High flammability and low wet strength are the main drawbacks of viscose fiber. Applying flame retardants to viscose fiber is necessary to reduce damage and life lost in fire. In this paper, generally used flame-retardants and new developed ones were introduced. The history and recent developments of flame-retardant viscose fiber are presented in details, future developing tendencies of flame-retardant viscose fiber were discussed.关键词：Viscose;Flame-retardant;Cellulose
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发布时间：2022-09-18 - 摘要：Polyurethane material is a kind of widely used polymer materials. Considering the wide application of polyurethane products and the rapid development of polyurethane industry in China, the production capacity of three basic raw materials for producing polyurethane, i.e. toluene diisocyanate(TDI), diphenyl methane diisocyanate(MDI) and polyether polyol(PPG) are predicted. According to the advantage of the population size in China, the growth of transportation industry, the new demanding in building energy conservation, the new development of leisure market and the application of medical materials etc., several important factors of promoting the development of polyurethane industry in future is analyzed, and the development trends of polyurethane industry in China is discussed.关键词：Polyurethane;Diisocyanate;Polyether polyol;Development trends
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发布时间：2022-09-18 - 摘要：The purpose of this article is to discuss the key points and teaching measures in polymer rheology course in engineering colleges. The main idea proposed is that the lecture should set its basement on polymer physics, and serve to polymer processing technology, and the practical applicability shall be emphasized. Polymer rheology is the key course linking the other ones in polymer major. It is different to the general rheology courses, and is of its own features. It is suggested that the polymer rheology course shall be taught more practically rather than theoretically in engineering colleges. However, the introduction to classical theories of rheology is also necessary, which will lead the top students going deeper. In this article, the popular textbooks both in Chinese and in English on polymer rheology were briefly reviewed. Some viewpoints on how to teach polymer rheology were proposed too.关键词：Polymer;Rheology;Teaching;Improvement;Practical applicability
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发布时间：2022-09-18 - 摘要：In this manuscript, we mainly introduce the preliminary exploration about the polymer chemistry in our university. Firstly, some ways were developed to improve the experimental course, which enhances students’ interest and teaching effect. The second method focused on the reform of traditional teaching mode and experimental contents, the combination of polymer chemistry, polymer physics, and principle of polymer processing, and opening comprehensive experimental course. Thirdly, we try to launch innovative experimental project, encourage the students to do more experiments in spare time, which contributed to foster the ability of analyzing and solving real problems by themselves. Fourthly, more microscale and semimicroscale experiments were also studied.关键词：Polymer chemistry;Comprehensive experiment;Innovative experiment;Microscale experiment
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发布时间：2022-09-18 - 摘要：Polymer Chemistry Experiment course is a key subject to cultivate students in polymeric discipline. This paper deals with the ways of teaching reform of Polymer Chemistry Experiment course, including how to motivate students’ learning interest and innovative ability, how to develop comprehensive experiment course, how to incorporate experiment course with research works, and how to improve evaluation systems. The aim of the reformation is to cultivate and enhance the students’ ability of practice and innovation, as well as the comprehensive characters.关键词：Polymer Chemistry Experiment course;Teaching reform;Comprehensive ability
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发布时间：2022-09-18
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