共缩聚反应
- 网络copolycondensation
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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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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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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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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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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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叔胺酸接受剂对低温溶液缩聚和共缩聚反应的影响
The Effect of Tertiary Amine as Acid Acceptor on the Low-Temperature Solution Polycondensation and Copolycondensation
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双活性基团的染料单体可顺利参与溶液共缩聚反应中的链增长过程,反应活性与乙二醇相近,聚合型染料的产率和粘均分子量都很高;
The monomeric dye with two active groups has no negative effect on solution polycondensation reaction .
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对-乙酰氧基苯甲酸与聚对苯二甲酸乙二醇酯共缩聚反应及醚键形成的研究
Polycondensation Reaction of p-Acetoxybenzoic Acid and Poly ( ethylene terephthalate ) and the Formation of Ether Bonds
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本文叙述了通过共缩聚反应制备织物用聚酯酰胺热熔胶的方法。
This paper deals with the preparation of polyester-amide hot melting adhesive for textile by the method of co-condensed polymerized synthesis .
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合成了3种不同的染料单体,通过溶液共缩聚反应研究了单体活性基团对缩聚反应的影响。
Three various monomeric dyes were prepared , the effects of the active groups of monomeric dyes on solution copolycondensation reaction were studied .
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通过2-(甲氧羰基)丙基甲基二氟硅烷(A)与2-(乙酰氧基)乙基甲基二氯硅烷(B)的共水解缩聚反应,得到含酯基的聚硅氧烷(C)。
Polysiloxanes ( C ) containing ester groups were obtained by cohydrolysis of 2 - ( carbomethoxy ) propyl methyl dichlorosilane ( A ) and 2 - ( acetoxy ) ethyl methyl dichlorosilane ( B ) .
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在碱性条件下通过TEOS和MTES的共水解缩聚反应制备了单甲基原位改性的SiO2溶胶,并使用提拉法在K9玻璃基片上镀制了疏水减反膜。
Methyl-situ-modified silica sols were obtained by hydrolysis and co-condensation reactions occurred in base-catalyzed system by carefully controlling the sol-gel process of Methyltriethoxysilane ( MTES ) and Tetraethoxysilane ( TEOS ) .
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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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研究发现,反应温度、时间等工艺条件对(共)聚酯的缩聚反应速度有很大的影响,在相同的工艺条件下,(共)聚酯的反应速度快于PET。
It is proved that the reaction temperature and time have dramatic effect on the polycondensation speed of copolyester . In the same technological condition , the reaction speed of PET / PEG copolyester is much higher than that of PET .
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60PHB/PET共聚酯的固相缩聚反应动力学研究
A study of the kinetics of solid state polycondensation for 60phb / pet copolyester