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- Which is More Efficient as Compatibilizer: Di-block or Multiblock Copolymer? 最有效的相容剂是两嵌段还是多嵌段聚合物?
- After hydrolysis of PtBA blocks, amphiphilic multiblock copolymer (PEO-b-PS-b-PAA-b-PS)n was obtained. 对PtBA嵌段进行水解,得到了含有聚丙烯酸嵌段的共聚物(PEO-b-PS-b-PAA-b-PS)n。
- Ternary amphiphilic multiblock copolymer (PEO-b-PS-b-PAA-b-PS)n was used as templates to fabricate the silver nanoparticles. 通过调节自组装过程中水的含量后发现,水含量不仅影响着胶束的大小,还会诱导胶束形状的变化。
- The (PEO-b-PS)n can be continuously used as macro-RAFT agent to monitor the polymerization of t-butyl acrylate to give the (ABCB)n type ternary multiblock copolymer (PEO-b-PS-b-PtBA-b-PS)n. 然后继续作为大分子链转移剂,调控丙烯酸叔丁酯进行RAFT聚合,我们得到(ABCB)n型三元两亲性多嵌段共聚物(PEO-b-PS-b-PtBA-b-PS)n。
- Multiblock copolymers synthesized by ATRP in recent ten years are reviewed. 综述了近十年来采用ATRP技术合成多嵌段共聚物的研究进展。
- The electronic absorption properties of multiblock copolymers under the electric fields[J]. 引用该论文 李宏;程杰;冯名诚;刘德胜.
- The multiblock copolymers exhibit good emulsifying properties and good phase transfer catalystic properties in Williamson reaction. 并研究其乳化性能和相转移催化性能。
- On the other hand, or the amphiphilic multiblock copolymers, the synthesis is solely confined in polycondesation of prepolymers. 而以亲水性聚合物为主链,亲油性聚合物为接枝链的接枝共聚物则因合成困难而报道较少。
- Water absorption, emulsifying property and crystalline property of the amphiphilic(styrene-butadiene-ethy-lene oxide)multiblock copolymers were studied. 研究了(苯乙烯-丁二烯-环氧乙烷)两性多嵌段共聚物的吸水性能、乳化性能及结晶性能。
- The optimum conditions in the reaction of chain extension were confirmed when the the PLA-PEG multiblock copolymers films had the best mechanical property. 确定了扩链过程中,多嵌段共聚物膜达到最佳力学性能的反应条件。
- The optimum conditions in the reaction of chain extension were determined to produce the PLA-PEG multiblock copolymers films with the best mechanical property. 确定了扩链过程中,多嵌段共聚物膜达到最佳力学性能的反应条件。
- Abstract: A polymeric method was explored for the preparation of polyester-polyether multiblock copolymers using polyesters and polyethers as starting materials. 摘要: 研究直接以聚酯为原料,合成聚酯-聚醚多嵌段共聚物。
- When a samll amount of polyester-polyether multiblock copolymers was blend with polypropylene from melt,the rheological properties,dyeability and hydroscopic properties of the blend can be improved. 聚丙烯和少量聚酯-聚醚多嵌段共聚物共混,可改进聚丙烯的流变性,吸湿性和染色性。
- Polymer used for waterproof and breathable film and coatings aremainly multiblock copolymers of AB type, Block-copolyether-ester(PEE), Block-copolyether-amide(PEBA) and Polyurethane(PU) etc. . 用于制备防水可呼吸薄膜及涂层的聚合物材料大都是AB型嵌段聚合物,如嵌段共聚醚酯(PEE)、嵌段共聚醚胺(PEBA)和聚氨酯(PU)等,其中以聚氨酯的机械性能和生物相容性更为优越,被广泛地作为医疗制品制备的主要原料。
- The syntheses,properties and potential applications of multiblock copolymers,such as ABA-type,ABC-type,and ABCBA-type,are discussed in terms of monomers,initiators,and polymerization condition. 从引发剂、共聚单体和反应条件等方面讨论了ABA型、ABC型和ABCBA型等类型多嵌段共聚物的合成、性质与潜在应用。
- As far as the same composition was concerned, PLA-PEG2000 multiblock copolymers films had better properties of water absorption and degradation than PLA-PEG1000 multiblock copolymers films. 同组分比例的PEG2000-PLA多嵌段共聚物的吸水性及降解性均比PEG1000-PLA多嵌段共聚物强。
- Meanwhile, mechanical property, water absorption and degradability of PLA-PEG multiblock copolymers was remarkablely changed with the content and molecular weight of poly(ethylene glycol). 同时,聚丙交酯-聚乙二醇嵌段共聚物膜的力学性能、亲水性和降解性,随PEG含量及分子量的变化有显著改变。
- Keywords polyether ketone ketone;diphenoxydiphenylsulfone;multiblock copolymer;thermal property;mechanical property; 聚醚酮酮;二苯氧基二苯砜;多嵌段共聚物;热性能;力学性能;
- Keywords amphiphilic copolymer;multiblock copolymer;water absorption;emulsifying property;crystalline property.; 两性共聚物;多嵌段共聚物;吸水性;乳化性;结晶度;结晶形态;
- Keywords Poly( L \|lactide);Poly(ethylene glycol);Multiblock copolymer;Cell scaffold; 聚丙交酯;聚乙二醇;多嵌段共聚物;细胞培养;