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J. Membr. Sci, 2015, published online: Isoporous membranes with gradient porosity by selective swelling of UV-crosslinked block copolymers
Selective swelling of amphiphilic block copolymers (BCPs) is an effective and nondestructive pore-making strategy. Here we coupled swelling-induced pore generation with UV crosslinking to fabricate BCP isoporous membranes with gradient porosity. Polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) solutions were coated onto macroporous supportin...
http://www.polymer.cnt//ss/dreiwang/publicationsshow_7889.html |
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UV cross-linked redox-responsive hydrogels for co-delivery of hydrophilic and hydrophobic drugs.
A novel redox-responsive hydrogel was designed for the co-encapsulation and controlled release of hydrophilic
and hydrophobic drugs, using 5-fluorouracil (5-FU) and camptothecin (CPT) as the model drugs, respectively.
For this purpose, Pluronic F-127 diacrylate macromer was synthesized and then self-assembled into the
micelles with their hydrophobic cores loading CPT. The CPT-loaded micelles we...
http://www.polymer.cnt//ss/madong/publicationsshow_5966.html |
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117. Simultaneous enhancements of toughness and tensile strength for thermoplastic/elastomer blends through interfacial photocrosslinking with UV radiation
本文报道了一种通过紫外光（UV）辐照在聚丙烯（PP）/马来酸酐接枝苯乙烯-b-（乙烯-co-丁烯）-苯乙烯嵌段共聚物（mSEBS）热塑性塑料/弹性体共混物中引入光交联界面的简单方法。在该方法中，以二苯甲酮（BP）作为光引发剂，三聚异氰酸三烯丙酯（TAIC）作为交联剂，在mSEBS相区与PP相区的界面处以及mSEBS相区中发生自由基交联反应。相较于未光交联的样品，有光交联界面结构的PP/mSEBS 共混物的韧性和拉伸强度由于光交联增强的界面黏附...
http://www.polymer.cnt//ss/zhigangwang/publicationsshow_4577.html |
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Surface modification of polyethylene by plasma pretreatment and UV-induced graft polymerization for improvement of antithrombogenicity
The purpose of this study was to enhance blood compatibility of polyethylene (PE) films. Glycidyl methacrylate (GMA) was grafted onto the surface of PE by Ar plasma pretreatment and UV-induced graft polymerization without photo-initiator, then heparin was immobilized onto the poly (glycidyl methacrylate) segments. The surface compositions and microstructure of GMA graft polymerized PE films were s...
http://www.polymer.cnt//ss/leslieliu/publicationsshow_3579.html |
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Investigation of Thiol-ene Addition Reaction on Poly(isoprene) Under UV Irradiation: Synthesis of Graft Copolymers with "V"-Shaped Side Chains
Poly(isoprene) (PI) with pendant functional groups was successfully synthesized by thiol-ene addition reaction under 365 nm UV irradiation, and the functionalized PI was further modified and used to prepare graft copolymers with ‘‘V’’- shaped side chains. First, the pendant ASCH2CH(OH)CH2OH groups were introduced to PI by thiol-ene addition reaction between 1-thioglycerol a...
http://www.polymer.cnt//ss/wangguowei/publicationsshow_3012.html |
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Grafting polymerization of acrylonitrile onto LDPE film: Study on grafting chain length and density with UV-vis spectroscopy
Grafting polymerization of acrylonitrile onto low density polyethylene film was studied further following the earlier work [1]. A novel and effective method was developed to directly determine the number of end-groups, i.e. phenyls at the end of grafted chains with UV-vis spectroscopy; according to the number of phenyl end-groups and the weight of grafted polymers, grafting chain length and d...
http://www.polymer.cnt//ss/yangpeng/publicationsshow_2160.html |
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Facile Preparation of a Patterned, Aminated Polymer Surface by UV-light-induced Surface Aminolysis
Introducing amine functional groups on polymer surfaces is extremely important for studying various processes that involve polymer surfaces. We report a novel and extremely simple method for preparing a tertiary-amine-terminated poly(ethylene terephthalate) (PET) surface by using a UV-light-induced surface aminolysis reaction. X-ray photoelectron spectroscopy and attenuated total-reflection infrar...
http://www.polymer.cnt//ss/yangpeng/publicationsshow_2099.html |
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UV固化金属涂料用低聚物的合成及性能研究
关键字：UV固化，金属附着力，丙烯酸多元醇
合成了一种可以用于UV金属涂料的低聚物，用傅立叶红外光谱（FTIR）对其结构进行表征；探讨了温度和时间对合成反应的影响；重点研究了低聚物对金属的附着力，初步探讨金属附着力基本原理；测试了UV固化涂膜的基本性能，表明该低聚物具有较快的光固化速度、高硬度、高柔韧性、优异的金属附着力和良好的耐水性等性能。
http://www.polymer.cn/research/ct_info920 |
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可UV固化的超支化聚氨酯丙烯酸酯的合成与表征
关键字：超支化聚酯；聚氨酯丙烯酸酯；UV固化；表征
超支化聚合物由于具有低的溶液和熔融粘度以及高反应活性，近年来在涂料、胶粘剂和膜材料等领域得到广泛的应用[1]。聚氨酯丙烯酸酯具有优良的物理机械性能，但其粘度较高[2]。因此，合成一种具有较大分子量、粘度较低且可UV固化的新型超支化聚氨酯丙烯酸酯具有重要的意义。本文用异佛尔酮二异氰酸脂（IPDI）和甲基丙烯酸羟乙酯（HEMA）的加成产物与超支化聚酯（BoltornTM H20）的端羟基反应，制备可UV固化的超支化聚氨酯丙烯酸...
http://www.polymer.cn/research/ct_info431 |
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MWNT/Ag/UV树脂纳米压印复合材料的研究
关键字：改性多壁碳纳米管 银 UV固化 电阻率 纳米压印
纳米压印技术（nanoimprint lithography. NIL）的研究始于普林斯顿大学纳米结构实验室Stephen Y. Chou教授[1]。将一具有纳米图案的模版以机械力在涂有高分子材料的基板上等比例压印复制纳米图案，其加工分辨率只与模版图案的尺寸有关，而不受光学光刻的最短曝光波长的物理限制，目前NIL技术已经可以制作线宽在5nm以下的图案[2]。Isaac W. Moran等[3]将紫外固化树脂进行预固化来提高纳米压印中基材对...
http://www.polymer.cn/research/dis_info10042 |
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