共缩聚
- 名copolycondensation
![共缩聚](../cache/1174494.jpg)
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对乙酰氧基苯甲酸与含磺酸基PET离聚物通过熔融共缩聚反应,获得一系列不同离子含量的液晶离聚物。
A series of polyester based liquid crystalline ionomers ( LCI ) with various sulfonate group content were prepared from p acetoxybenzoic acid and sulfonated PET ionomers through melt copolycondensation .
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PEN-PET共缩聚动力学研究
Study on copolycondensation kinetics of PEN-PET
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NMR分析可判定共缩聚物的嵌段程度。
NMR analysis could decide for the block degree of copolycondensate .
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通过共缩聚反应合成了不同PEG分子量的PET-PEG共聚脂,采用DSC法测定了共聚物的结晶性能、结晶速度。
The PET-PEG copolymers with different PEG molecular weight were synthesized through condensation polymerization .
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焦油酚-苯酚甲醛(PCF)共缩聚树脂的合成
The Synthesis of Co-Polymerization Resin of Tar-Phenol-Phenol-Formaldehyde
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采用DMT与BD、EG共缩聚的方法制取的共聚酯是无规共聚酯。
The copolymer manufactured by DMT Copolymerized with BD and EGis belonged to the random copolyester .
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合成方法对共缩聚PPTA比浓对数粘度的影响
Effect of synthesis process on reduced inherent viscosity of PPTA
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PPTA共缩聚改性研究现状
Status of research on modification of PPTA by copolycondensation
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PUF共缩聚树脂的合成及其性能研究
Study on Synthesis and Properties of Co-condensated PUF Resin
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该共缩聚型聚酰亚胺在非质子强极性溶剂中均具有良好的溶解性,玻璃化温度(Tg)大于250℃,10%的热分解温度(Td)为5197℃。
The copolyimide was very soluble in strong polar aprotic solvents . Its glass transition temperature was above 250 ℃ and 10 % thermal decomposition temperature was 519.7 ℃ .
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本文采用PET(PEB60)和低分子量的PET熔融共缩聚,制备PET&PET(PHB60)共缩聚物。
In this paper , the block PET-PET ( PHB60 ) copolycondensate was prepared by using melt condensation from PET ( PHB60 ) copolyester and low molecular weight PET .
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改善对位芳纶(PPTA)性能的有效方法是在聚合体系中加入第三第四单体进行共缩聚改性。
Copolycondensation by adding third or fourth monomer into the polymerization system is an efficient way to improve the properties of PPTA .
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结果表明PET和PET(PHB60)在熔融时可发生分子链间酯交换,得到有一定嵌段性的共缩聚物;
The results show that the block PET-PET ( PHB60 ) copolycondensate was obtained duto in melt blending exists transesterification reaction between molecular chains of PET and PET ( PHB60 ) .
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采用热重分析法(TG)对MUF共缩聚树脂的耐热性能进行评价,重点比较了固化剂、贮存时间、样品状态等条件对MUF树脂耐热性能的影响。
Use TG to investigate heat-resistant quality of MUF resin , and the effect of curing agent , storage time , sample state on that was mainly studied .
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借助NMR、DSC、热台偏光显微镜对PET&PET(PHB60)共缩聚物的嵌段性、聚集态进行了研究。
The block property and aggregative state of PET-PET ( PHB60 ) copolycondensate have been investigated by means of various techniques , such as NMR , DSC , polarizing microscope , etc.
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本文采用正交试验法,主要探讨了焦油酚-苯酚-甲醛共缩聚树脂的原料配比及合成工艺,并借助凝胶色谱(GPC)仪测定了焦油酚的平均分子量。
In this paper , the formation and synthesis process of tar-phenol s-phenol-formaldehyde co-polymerization resin was investigated by orthogonal method , and average molecular weight of tar-phenol was determined by means of gel penetration chromatograph ( GPC ) .
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对苯二甲酸二甲酯(DMT).3.5-间苯二甲酸二甲酯苯磺酸钠(SIPM)通过与乙二醇的酯交换及熔融共缩聚反应,得到了一组不同离于含量的离聚物。
A class of polyester ionomers with various contents of sulfonate group were prepared from dimethyl terephalate ( DMT ) and dimthyl ( sodiosulfo ) phathalate ( SIPM ) by ester-exchange reaction and then melt co-polycondensation .
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研究结果表明,甲基硅树脂、硅胶、铝胶通过共缩聚反应在PC板表面形成带有机基团的无机交联网络结构,基本骨架由Si-O-Si,Si-O-Al,Al-O-Al组成;
The results show that the cross-linked inorganic structure endcapped with organic groups on the PC forms by the co-condensation reaction between methylsilicone , boehmite and silica sols , whose base backbone is Si-O-Si , Si-O-AI , AI-O-AI network structure .
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染料单体的活性基团对溶液共缩聚反应的影响
Effects of Active Groups of Monomeric Dyes on Solution Copolycondensation Reaction
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PHB/PET/VA三元共缩聚反应机理探讨
Studies on PHB / PET / VA Copolycondensation Reaction Mechanisms
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尿素-三聚氰胺-甲醛共缩聚树脂应用进展
The Review of Urea-Melamine - Formaldehyde Co - condensed Resin
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共缩聚型聚酰亚胺模塑粉的合成与性能研究
Study on synthesis and properties of copolycondensation polyimide molding powder
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共缩聚物序列结构的~1H-NMR研究
Study on sequence structure of copolycondensation polymer by ~ 1H & NMR
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淀粉-乳酸直接共缩聚产物的表征
Characterization of the products of direct co-polycondensation of starch with lactic acid
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苯乙酮-环己酮-甲醛共缩聚树脂的合成研究
Study on Synthesis of Acetophenone - Cyclohexanone - Formaldehyde Resin
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啤酒瓶用共缩聚PET/PEN的研究
Study of Copolycondensate PET / PEN for Beer Bottle
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苯酚焦油酚甲醛共缩聚树脂反应机理的研究
Study on the Reaction Mechanism of Phenol-Crue Cresols-Formaldehyde ( PCF ) Co-Condensation Resins
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提出了一种多元共缩聚树脂胶粘剂。
This paper introduces a polybasic polycondensated resin adhesive .
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不饱和聚酯-环氧树脂嵌段共缩聚型光敏预聚物的合成
Studies on the synthesis of unsaturated polyester-epoxy resin block copolymer type photosensitive prepolymers
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对位芳香族聚酰胺共缩聚工艺研究
Study on the Copolymerization Process of Para-Aromatic Polyamide