新型β-环糊精固载化高分子合成研究(Ⅰ)

利用疏水性骨架聚苯乙烯载体,经氯甲基化功能基修饰,直接将β-环糊精化学固载到高分子载体上,制备出一类新型的β-环糊精包络型高分子,该合成方法简便,固载量较高,并呈现明显的包络识别功能。作为医用亲和吸附剂对非结合型胆红素具有很好的清除能力。     

高分子载体Lewis酸催化剂:聚苯乙烯-四氯化锆复合物——制备及其在有机合成中的应用

功能高分子是高分子科学发展的一个十分活跃的领域.近年来,它在蛋白质、核酸的合成与分离、固定化酶、有机合成、相转移催化、高分子药物和高分子催化剂等许多方面都取得了广泛的应用和进展.高分子催化剂是功能高分子的一个重要部分,正因其具有独特的功能和优点而日益受到人们的重视.Sket和Neckers等人曾将BF_3和AlCl_3与聚苯乙烯反应制成高分子复合物,它对酯化、缩醛、缩酮等有机反应具有良好的催化作用.本文首次将易于水解的无水四氯化锆与聚苯乙烯反应,制成一种稳定的高分子载体Lewis酸催化剂,并证明它对缩醛、缩酮、酯化、成醚及付氏烷基化等有机合成反应具有很好的催化效能,并能重复使用多次.这是一种高效、方便、无污染、能再生的新型高分子催化剂.     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术刊物.其宗旨是反映我国功能高分子领域的科研成果,促进国内外学术交流,为加速实现我国社会主义现代化建设服务。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章.设研究论文、综述、简报、快报等栏目。竭诚欢迎高分子领域的专家、学者投稿。     

大分子单体聚N-乙烯甲酰胺与苯乙烯共聚合成热敏性功能高分子微球

用自由基聚合法合成了大分子单体聚N 乙烯甲酰胺和功能高分子微球 .用GPC、分光光度仪和扫描电子显微镜等对合成的聚合物进行了表征 .研究结果表明 ,大分子单体聚N 乙烯甲酰胺和功能高分子微球具有明显的热敏性特性 ,且合成的功能高分子微球具有单分散性 ,粒径在 1～ 5 μm之间     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、热点述评等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfzxb.ecust.edu.cn)进行网上投稿。     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、热点述评等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfzxb.ecust.edu.cn)进行网上投稿。     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、热点述评等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfzxb.ecust.edu.cn)进行网上投稿。     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、热点述评等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1 来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfzxb.ecust.edu.cn)进行网上投稿。     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、研究亮点等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfzxb.ecust.edu.cn)进行网上投稿。     

《功能高分子学报》征稿简则

正《功能高分子学报》是国家教育部主管、华东理工大学主办的专业性学术期刊,国内外公开发行。刊登内容主要为功能高分子和其他高分子领域具有创新意义的学术文章,设研究快报、研究论文、综述、研究亮点等栏目。竭诚欢迎高分子领域的专家、学者投稿。1.投稿须知1.1来稿必须具有创新性、学术性、科学性和可读性。本刊采用网络投稿和审稿,不接受纸质稿件与Email投稿,请作者登录网站(http://gngfaxb.ecust.edu.cn)进行网上投稿。     

Inorganic-Organic Hybrid Polymers Based on Surface-Modified Metal Oxide Clusters

Transition metal oxide clusters with unsaturated carboxylate ligands bonded to their surface were polymerized in the presence of organic co-monomers by various polymerization techniques to form cluster-reinforced polymers. The properties of the cluster-crosslinked hybrid polymers are distinctly different to those of the parent polymers and originate from both crosslinking and filler effects. Variation of the cluster proportion, the kind of employed cluster, the ratio of functional and non-functional capping ligands and the polymerization conditions allows modifying the materials properties of the hybrid materials. The most important changes in materials properties compared with the cluster-free polymers relate to the swelling behavior, thermal stability and mechanical properties. Furthermore, cluster-specific properties can be introduced into the polymers, such as magnetic properties.     

旋光性聚合物的铁电性能

旋光性高分子在结构上具有一定的空间特异性,因而可以有多种应用。根据铁电材料所必需具备的条件,经过特定的分子结构设计,可以使之具备铁电性能,据此,人们已合成了许多不同类型的铁电聚合物。本文按照铁电聚合物所处的聚集态不同,分别综述了具有铁电特性的晶态和液晶态旋光性聚合物的种类、结构特点及其铁电性能,分析讨论了影响液晶态旋光性聚合物的自发极化率和响应时间的因素。     

PAMAM-containing semiconducting polymers: Effect of dendritic side chains on optoelectronic and solid-state properties

Dendronized polymers are a particularly interesting platform for the preparation of advanced semiconductors given their high degree of functionalization, monodispersity, and bulkiness. Despite advantageous features, the incorporation of dendritic moieties in semiconducting polymers is still relatively underexplored, and the impact on the optoelectronic, thermomechanical, and solid-state properties are difficult to predict. This work focuses on the incorporation of polyamidoamine (PAMAM) dendritic side chains to semicrystalline polymers based on diketopyrrolopyrrole. Using a versatile synthetic strategy based on the azide-alkyne Huisgen 1,3-dipolar cycloaddition, dendronized semiconducting polymers were prepared and the effect of the dendritic side chains on different properties were carefully characterized using different techniques. The dendritic side chains were found to reduce aggregation and crystallinity of the polymers in thin films. PAMAM-containing semiconducting polymers were also shown to have good charge transport properties in organic field-effect transistors, within the same order of magnitude to that of diketopyrrolopyrrole-based polymers bearing branched alkyl chains. This new design approach is particularly interesting to develop advanced semiconducting polymers given its synthetic versatility and the structural diversity of the dendronized moieties. Furthermore, the utilization of dendritic moieties in semiconducting polymers is a promising approach to fine-tune the thermomechanical properties toward semiconducting polymers for next-generation organic electronics.     

The properties of water in solutions of hydrophilic polymers

The properties of water in solutions of hydrophilic polymers were compared with those in solutions of their monomeric analogues. The properties of polar groups grafted to polymeric molecules were known to remain unchanged. A comparison of the properties of water in solutions of polymers and the corresponding monomers under equal conditions therefore allowed us to obtain information about the influence of polymeric bonds on the properties of water in solutions of polymers. Proceeding from this, we analyzed the influence of polymeric chains and three-dimensional polymeric network on the activity and concentration of water in solutions of polymers.     

The influence of different fillers on mechanical and physical properties of high-molecular-weight biodegradable aliphatic polyesters

Poly(ethylene succinate) and poly(butylene succinate) are synthetic biodegradable polymers, and much attention is paid to study the properties of pure polymers and the polymers modified by different comonomers and filling materials. The literature data on the physical properties of these polymers vary widely depending on their method of preparation and subsequent modifications. Most of the studies deal with low- and moderate-molecular-weight polymers or commercial grade polymers, modified by different comonomers and chain-extension agents. The data on pure high-molecular-weight polymers are scarce. In this work, we have prepared high-molecular-weight (MW range of (1.4–1.8) × 10⁵) poly(ethylene succinate) and poly(butylene succinate) by direct polycondensation at 200°C in a nitrogen flow without chain-extension agents. We have further studied the properties of pure polymers and examined the effect of different fillers (carbon nanotubes, SiO₂, Aerosil®) on the mechanical and physical properties of these polymers. Because of high-molecular-weight, the polymers possess increased tensile and storage moduli and thermostability. Even very low filler contents (up to 1 wt %) have a pronounced influence on the polymer properties: the polymer tensile and the storage modulus increases, the elongation at break decreases, and the thermal stability of the polymers decreases slightly. The effects of fillers are less pronounced compared with those for low- and moderate-molecular-weight polymers. When mixed together, poly(ethylene succinate) and poly(butylene succinate) crystallize independently from each other as evident from the mechanical and thermal analysis data.     

导电聚合物

导电聚合物是20世纪70年代发展起来的一个研究领域,因其诱人的应用前景受到广泛重视,本文介绍了导电聚合物的发展和发展历史,综述了导电聚合物的结构和掺杂特征,制造方法,电导和电化学特性及其本征态共轭聚合物的光电特性,对导电聚合物当前的研究热点和应用前景进行了讨论。     

含季铵离子液晶聚合物

详细讨论了带有铵离子的液晶聚合物的合成与性能,以及铵离子对聚合物液晶性能的影响。研究表明,液晶相温度的增加是由铵离子在聚合物链中浓度的增加而引起的。     

Hyperbranched polymers and their use in the technology of paint-and-varnish materials and coatings (A review)

The main approaches to “assembling” of dendritic polymers of various architectures are considered. Types of dendritic polymers are generalized, and the main criteria for evaluating their topology, physicochemical properties, and application fields are outlined. The possibility of using commercially produced hyperbranched polymers for modification of the operation properties of polymeric materials is demonstrated. Particular attention is paid to the use of hyperbranched polymers as precursors for preparing modifiers of the surface properties of polymeric coatings.     

共轭聚合物复合材料的结构和性能

对聚苯胺、聚吡啶等共轭聚合物与非导电聚合物材料的复合体系的结构和性能进行了综述。不同方法制备的复合材料在结构和性能上各有特点。一般共轭聚合物与非导电高分子材料相容性差、尤其是低极性高分了。     

手性配位聚合物的构筑及其应用

手性配位聚合物因其结构多样性、可调控性以及潜在的多功能性,已经成为当前化学和材料学的研究热点。在合成中,可以通过选择特定的非手性配体、手性配体、手性溶剂或手性模板剂等来构筑手性配位聚合物。此外,还可以选择特定的金属离子赋予目标手性配位聚合物光、电、磁、催化和非线性光学等性能。本文详细综述了近年来纯手性配位聚合物的合成方法,以及在手性分离、手性催化、非线性光学、铁电和多铁等领域的应用研究进展。最后,对手性配位聚合物的合成方法及应用前景进行了展望。