In situ monitoring of cyclic butylene terephtalate polymerization by dielectric sensing

Hakme C; Stevenson I; Maazouz A; Cassagnau P; Boiteux G; Seytre G

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In situ monitoring of cyclic butylene terephtalate polymerization by dielectric sensing

机译：通过介电传感原位监测环状对苯二甲酸丁二醇酯聚合

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The in situ monitoring of the polymerization of cyclic butylene terephtalate (CBT) oligomers by dielectric sensing has been investigated under isothermal conditions at different processing temperatures. The change in conductivity depends on the increase of molecular weight but is also influenced by crystallization of the obtained c-PBT during or after polymerization. Dielectric sensing investigations are in good agreement with SEC and DSC analysis which confirm the observation of polymerization and crystallization kinetics. Unfortunately, the conductivity signal could not distinguish between the polymerization and crystallization when they occur simultaneously at lower temperatures (< 210 degrees C) but the crystallization remains detectable by the MWS relaxation which is related to the crystalline/amorphous interface. (c) 2007 Elsevier B.V. All rights reserved.

机译：已经研究了在等温条件下，不同工艺温度下通过介电传感对环丁烯对苯二甲酸酯（CBT）低聚物聚合反应进行的原位监测。电导率的变化取决于分子量的增加，但也受聚合过程中或聚合后所获得的c-PBT结晶的影响。介电传感研究与SEC和DSC分析非常吻合，这证实了对聚合和结晶动力学的观察。不幸的是，当电导率信号在较低的温度（<210摄氏度）下同时发生时，无法区分聚合和结晶，但仍可通过MWS弛豫检测到结晶，这与晶体/非晶界面有关。（c）2007 Elsevier B.V.保留所有权利。

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《Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites》 |2007年第51期|共4页
作者
Hakme C; Stevenson I; Maazouz A; Cassagnau P; Boiteux G; Seytre G;
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正文语种 eng
中图分类晶体学;
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crystallization; electrical and electronic properties; dielectric properties; relaxation; electric modulus; fast ion conduction; polymers and organics; thermal properties; POLY(BUTYLENE TEREPHTHALATE) OLIGOMERS; RELAXATION SPECTROSCOPY; MOLECULAR-DYNAMICS; CRYSTALLIZATION; COMPOSITES; POLY(ETHYLENE-TEREPHTHALATE); BLENDS;

机译：结晶;电学和电子性能;介电性能;松弛;电模量;快速离子传导;聚合物和有机物;热性能;聚对苯二甲酸丁二醇酯低聚物;弛豫光谱;分子动力学;结晶化;复合材料;聚对苯二甲酸乙二酯;混合;

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1. In situ monitoring of cyclic butylene terephtalate polymerization by dielectric sensing [J] . Hakme C, Stevenson I, Maazouz A, Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2007,第47a51期

机译：通过介电传感原位监测环状对苯二甲酸丁二醇酯聚合
2. Effect of thermally reduced graphite oxide (TrGO) on the polymerization kinetics of poly(butylene terephthalate) (pCBT)/TrGO nanocomposites prepared by in situ ring-opening polymerization of cyclic butylene terephthalate [J] . Chen H., Huang C., Yu W., Polymer: The International Journal for the Science and Technology of Polymers . 2013,第6期

机译：热还原氧化石墨（TrGO）对原位开环聚合对苯二甲酸丁二酯制备的聚对苯二甲酸丁二醇酯（pCBT）/ TrGO纳米复合材料的聚合动力学的影响
3. Preparation and characterization of poly (butylene terephthalate)/graphene composites by in-situ polymerization of cyclic butylene terephthalate [J] . Paola Fabbri, Elena Bassoli, Silvia Bittolo Bon, Polymer: The International Journal for the Science and Technology of Polymers . 2012,第4期

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4. Rheological and Ultrasonic Monitoring of the In-situ Polymerization of Cyclic Butylene Terephthalate [C] . Abdessalem Derdouri, Jacques Tatibouet, Pierre Sammut International Congress on Rheology . 2008

机译：对苯二甲酸丁苯二甲酸丁二醇酯的原位聚合的流变和超声波监测
5. Magnetic and dielectric properties of sulfonated (S) poly[(styrene)-(ethylene-co-butylene)]-styrene (SEBS) block copolymer/magnetic metal oxide nanocomposites synthesized via an in-situ precipitation method. [D] . Peddini, Sateesh Kumar. 2009

机译：通过原位沉淀法合成的磺化（S）聚[（苯乙烯）-（乙烯-丁烯）]-苯乙烯（SEBS）嵌段共聚物/磁性金属氧化物纳米复合材料的磁性和介电性能。
6. Enhancement of Mechanical and Thermal Properties of Oil Palm Empty Fruit Bunch Fiber Poly(butylene adipate-co-terephtalate) Biocomposites by Matrix Esterification Using Succinic Anhydride [O] . Samira Siyamak, Nor Azowa Ibrahim, Sanaz Abdolmohammadi, 2012

机译：琥珀酸酐基质酯化技术增强油棕空果束纤维聚己二酸丁二醇酯-对苯二甲酸对苯二甲酸丁二酯生物复合材料的机械和热性能
7. Novel poly(butylene terephthalate)/poly(vinyl butyral) blends prepared by in situ polymerization of cyclic poly(butylene terephthalate) oligomers [O] . Amiya R Tripathy, Wenjie Chen, Stephen N Kukureka, 2003

机译：通过循环聚（对苯二甲酸丁二醇酯）低聚物的原位聚合制备的新型聚（对苯二甲酸丁二醇酯）/聚（乙烯基缩丁醛）共混物

In situ monitoring of cyclic butylene terephtalate polymerization by dielectric sensing

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