互穿聚合物网络凝胶调剖堵水剂的研究进展

综述了互穿聚合物网络凝胶调剖堵水剂的国内外研究现状;阐述了互穿聚合物网络凝胶调剖堵水剂的制备方法、原料、配方、性能以及现场应用效果;同时指出了互穿聚合物网络凝胶调剖堵水剂的发展趋势。研究成果对改善高含水油田注水开发效果具有一定的参考价值和指导意义。     

胶乳互穿网络聚合物(LIPN)的阻尼性能研究与应用进展

介绍了胶乳互穿网络聚合物的微观结构形态、阻尼原理、合成过程和类别,讨论了其阻尼性能的影响因素,同时对胶乳互穿网络聚合物在不同领域的应用进行了总结,并对胶乳互穿网络聚合物的发展方向进行了展望。指出了胶乳互穿网络聚合物结构与阻尼性能的关系,在其合成过程中,其阻尼性能受到交联剂含量、网络配比、加料顺序、加料方式和填料的影响,其在阻尼涂料、皮革涂饰剂和涂料印花等领域有广泛的应用。同时也指出了目前关于胶乳互穿网络聚合物的研究遇到的瓶颈,未来的研究应从新的聚合工艺、新的表征方法和组成多样性寻求突破。     

胶乳型互穿网络聚合物的研究

综述了胶乳型互穿网络聚合物的研究,着重介绍了合成工,乳胶粒形态结构的影响因素,同时亦对胶乳型互穿网络聚合物的性能作了介绍。     

有机硅互穿聚合物网络

概述了互穿聚合物网络的几种类型及其制备方法 ,并以相容性和相分离的关系为基础介绍了表征相形态和相尺寸的手段 ,重点综述了含有机硅的互穿聚合物网络的合成和性能 ,以及现有的和潜在的应用     

环氧树脂/三羟甲基丙烷三甲基丙烯酸酯互穿网络聚合物的微观结构和电性能研究

采用新型脂环族环氧树脂（CER）、甲基六氢邻苯二甲酸酐（MeHHPA）和三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）作为基体树脂制备了一种崭新的互穿网络聚合物。由于TMPTMA的自由基聚合反应先于CER和MeHHPA的阳离子聚合反应,得到了一种分步互穿网络聚合物,最终分步互穿网络聚合物没有出现明显微观相分离现象。着重考察了TMPTMA含量对互穿网络聚合物电性能的影响。结果表明,CER/TMPTMA互穿网络聚合物在不同温度下的交流电阻与体系的组成和微观结构有关。随着TMPTMA含量的增加,CER/TMPTMA互穿网络聚合物的击穿强度和形态参数增大,互穿网络聚合物的均匀度逐渐增加,击穿机理趋于一致。     

药物缓释材料的合成与性能

研究了聚氨酯/聚醚半互穿网络聚合物的合成、溶胀行为和释放性能,特别是疏水组成、线型聚醚结构和温度对网络的溶胀平衡和溶胀动力学的影响。同时还测量了大分子肝素在填充时的分配系数和释放速度,并对肝素从溶胀的互穿网络聚合物中释放的机理进行了讨论。     

互穿聚合物网络技术在聚氨酯中的应用

综述了互穿聚合物网络(IPN)技术在聚氨酯材料中的应用研究进展。简述了聚氨酯IPN的制备,具体叙述环氧树脂、聚丙烯酸酯、聚硅氧烷、乙烯基酯树脂等聚合物与聚氨酯互穿网络改性的效果,并在此基础上展望了聚氨酯互穿网络聚合物的发展趋势。     

脂肪族聚碳酸酯型聚氨酯互穿网络聚合物的研究

简述了脂肪族聚碳酸酯聚氨酯（ＰＣＵ）互穿网络聚合物（ＩＰＮ）的发展及最新研究动态。介绍了其制备、表征、结构与性能的关系。预示了聚碳酸酯型聚氨酯互穿网络聚合物材料的开发前景。     

药和缓释材料的合成与性能

研究了聚氨酯／聚醚半互穿网络聚合物的合成、溶胀行为和释放性能，特别是疏水组成、线型聚醚结构和温度对网络的溶胀平衡和溶胀动力学的影响。同时还测量了大分子肝素在填充时的分配系数和释放速度，并对肝素从溶胀的互穿网络聚合物中释放的机理进行了探讨。     

二氧化双环戊二烯环氧树脂/聚氨酯互穿聚合物网络的制备与性能研究

制备了新型二氧化双环戊二烯环氧树脂(DCPDE)/聚氨酯(PU)互穿聚合物网络(DCPDE/PU IPNs).采用红外光谱法对互穿聚合物网络的结构进行了表征.对不同固化体系的热稳定性、力学性能和涂膜的微观形貌进行了研究.研究结果表明:互穿聚合物网络的形成,提高了二氧化双环戊二烯环氧树脂的弯曲强度、附着力和耐冲击性.固化剂的加入改进了聚氨酯/环氧树脂互穿网络的耐热性能.增韧改性后的环氧树脂比改性之前的环氧树脂呈现明显的两相结构.     

Polyurethane—polystyrene interpenetrating polymer networks

Two component interpenetrating polymer networks (IPN) of the SIN type (simultaneous interpenetrating networks), composed of a polystyrene network (crosslinked with divinyl benzene) and a polyester-polyurethane network (crosslinked with trimethylolpropane), were made. Electron microscopy and glass-transition measurements showed that phase separation had resulted with some interpenetration, presumably occurring at the boundaries. At a composition of about 75 percent polyurethane, a phase inversion occurred, the continuous phase being polystyrene at polyurethane compositions of less than 75 percent. The stress-strain properties and hardness measurements agreed with these results. Enhanced tensile strength was observed in the IPN's in a concentration range where modulus reinforcement was not evident. A small enhancement in tear strength and thermal stability was also noted.     

聚氨酯互穿网络聚合物的研究进展

概述了聚氨酯－丙烯酸酯互穿网络溶液法和乳液法合成工艺，性能：介绍了环氧丙烯酸酯－聚氨酯，聚碳酸酯－聚氨酯互穿网络的合成工艺，性能及研究进展。     

The effect of composition and the level of crosslinking of the poly(methylmethacrylate) phase on the properties of natural rubber‐poly(methylmethacrylate) semi‐2 interpenetrating polymer networks

The effects of the PMMA content and the cross‐linker level in the poly(methylmethacrylate) component on the dynamic and physico‐mechanical properties of semi‐2 interpenetrating polymer networks based on natural rubber and poly(methylmethacrylate) were determined. The miscibility of the components in these semi‐2 interpenetrating polymer networks was determined using the loss tangent data, obtained from dynamic mechanical thermal analysis and the interphase contents were calculated from modulated scanning calorimetric data. Some component mixing in these semi‐2 interpenetrating polymer networks was evident from these modulated differential scanning calorimetric and dynamic mechanical thermal analysis data. The degree of component mixing increased with cross‐linker level in the PMMA phase. The PMMA content in the semi‐2 IPNs has a significant effect on the tensile and hysteresis behavior of these semi‐2 interpenetrating polymer networks. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

Model glassy inhomogeneous polymer networks

Summary A new procedure for the preparation of model polymer networks having an inhomogeneous distribution of crosslinks has been developed. Emulsion polymerized polystyrene/divinylbenzene microspheres, of uniform particle size, are swollen with styréne monomer, which is later polymerized in situ. The resulting network consists of discrete sites of crosslinked material dispersed in an interpenetrating matrix, and is suggested as a model for the nodular morphology which has been observed in some epoxy networks. The results of initial studies showing the effects of nodule size and concentration on the fracture toughness of the glassy networks are presented.     

Naturally functionalized triglyceride oils in interpenetrating polymer networks

The use of naturally functionalized triglyceride oils in interpenetrating polymer networks (IPNs) is reviewed. An oil bearing either hydroxyl or epoxide functionality may be crosslinked to form a soft elastomer in the presence of another monomer or network to form an IPN, or in the presence of a linear polymer, to form a semi-IPN. Polymerization and characterization of naturally functionalized triglyceride oils are mentioned, with emphasis on the distribution and effect of nontrifunctional triglycerides on elastomer properties. The simultaneous synthesis of polystyrene/functional triglyceride oil IPNs is reviewed, and several factors influencing IPN morphology and mechanical properties are discussed. The synthesis and properties of poly(ethylene terephthalate)/functional triglyceride oil semi-IPNs are emphasized, with the importance of ester interchange in the synthetic procedure, and factors influencing crystallinity and morphology are introduced.     

聚苯乙烯/聚丙烯酸丁酯自交联胶乳互穿聚合物网络的力学性能和动态力学性能

采用种子乳液聚合制备了聚苯乙烯/聚丙烯酸丁酯自交联胶乳互穿聚合物网络。拉伸实验结果表明,用双丙酮丙烯酰胺和己二酸二酰肼自交联的胶乳互穿聚合物网络(LIPN)比相应的胶乳互穿聚合物网络具有较高的拉伸强度,并且随双丙酮丙烯酰胺用量的增加,拉伸强度增加以及永久变形降低,但离子键和氢键交联的LIPN具有很高的扯断伸长率和很大的永久变形,这些说明用双丙酮丙烯酰胺和己二酸二酰肼界面共价键交联能很好地改善力学性能和抗蠕变性能。动态力学谱结果表明,用双丙酮丙烯酰胺和己二酸二酰肼交联的LIPN比相应的LIPN以及离子键和氢键交联的LIPN具有较好的组分相容性和阻尼性能。     

Interpenetrating polymer networks of castor oil polyester and poly(methyl methacrylate)

The physical and mechanical properties of interpenetrating polymer networks (IPNs) and semi-I IPNs of the castor oil polyester network and poly(methyl methacrylate) were investigated. In the semi-I IPNs, the second component was a copolymer of poly(methyl methacrylate) and polystyrene (PS) or poly(methyl methacrylate) and poly(n-butyl acrylate) (PnBA). The dynamic mechanical properties indicated the semi-I IPNs to be more compatible than the IPNs. The degree of molecular mixing was higher than that for IPNs. The impact strength showed a gradual increase with the increase in the percentage of PS or PnBA in the copolymer. The effect of the copolymerization of the second component on transparency was investigated. The transparency of the semi-I IPNs increased with the increasing composition of PnBA, but reduced with the increasing composition of PS. These results are discussed in light of existing theories.     

丙烯酸酯改性聚氨酯胶黏剂

叙述了丙烯酸酯改性聚氨酯胶黏剂的3种制作方法:共混法;互穿聚合物网络法;接枝法。简述了几种典型共混物组成,详述了互穿聚合物网络和接枝聚合物的制法。     

互穿网络型高分子基无机纳米复合材料的制备及表征

文章主要介绍了互穿网络型高分子基无机纳米复合材料的制备方法,对高分子基无机纳米复合材料的尺寸及分散状况、粒子形态结构、粒子的生长等表征方法进行了介绍,并对其未来研究方向进行了展望。     

Semi- and fully interpenetrating polymer networks based on polyurethane-polyacrylate systems. VIII. The influence of the degree of crosslinking of the second formed network on the morphology and properties of polyurethane polymethylacrylate interpenetrating polymer networks

A series of polyurethane–polymethylacrylate sequential interpenetrating polymer networks containing 40% by weight of polyurethane were prepared in which the levels of crosslinking in the second formed network—polymethylacrylate—was systematically altered over a wide range. The polymethylacrylate networks and the interpenetrating polymer networks were investigated using dynamic mechanical analysis, sonic velocity measurements, and tensile testing. In addition, the interpenetrating polymer networkds were studied using transmission electron microscopy. The interpenetrating polymer networks showed high values of the Oberst damping factor. It was concluded that tightening the second formed network does not produce the dramatic effects associated with decreasing the average molecular weight between crosslinks of the first formed network.