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乙烯向超高分子量聚乙烯的气相聚合。

Gas phase polymerization of ethylene towards UHMWPE.

作者信息

GeÇİm Gözde, ErkoÇ Ertuğrul

机构信息

1Department of Chemical Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa Turkey.

Admire-Tech Inc., Bursa Turkey.

出版信息

Turk J Chem. 2020 Jun 1;44(3):695-711. doi: 10.3906/kim-1907-48. eCollection 2020.

DOI:10.3906/kim-1907-48
PMID:33488187
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7671210/
Abstract

For the first time, ultra-high molecular weight polyethylene (UHMWPE) was produced in gas phase process with a new fluidized bed concept where the solids are dispersed phase and the gas is bulk phase as opposed to conventional fluidized bed reactors (FBRs). With this concept, UHMWPE with average molecular weights about 1-6,9 × 10 g mole were produced with a commercial supported Ziegler-Natta catalyst by using a gas phase mini semibatch reactor system. Additionally, optimum conditions of gas phase polymerization for the best results of productivity, catalyst activity, molecular weight and crystallinity were determined by Taguchi experimental design and catalyst stability at the optimum condition was tested by video microscopy polymerization. The characterization of products was carried out experimentally by TGA, DSC, FTIR, and NMR.

摘要

首次采用一种新的流化床概念在气相法中生产超高分子量聚乙烯（UHMWPE），在这种概念中，与传统流化床反应器（FBRs）相反，固体为分散相，气体为连续相。基于此概念，使用气相微型半间歇反应器系统，通过商业负载型齐格勒-纳塔催化剂生产出平均分子量约为1 - 6.9×10⁶g/mol的UHMWPE。此外，通过田口实验设计确定了气相聚合的最佳条件，以获得最佳的生产率、催化剂活性、分子量和结晶度结果，并通过视频显微镜聚合测试了最佳条件下催化剂的稳定性。通过热重分析（TGA）、差示扫描量热法（DSC）、傅里叶变换红外光谱（FTIR）和核磁共振（NMR）对产物进行了实验表征。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/dc09289d5229/turkjchem-44-695-fig007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/746941a2c4a6/turkjchem-44-695-fig001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/4af90380d3e4/turkjchem-44-695-fig002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/1e31f47f9495/turkjchem-44-695-fig003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/2df8f7cd2208/turkjchem-44-695-fig004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/536b9a4af4dd/turkjchem-44-695-fig005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/cd8acda7e22b/turkjchem-44-695-fig006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/dc09289d5229/turkjchem-44-695-fig007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/746941a2c4a6/turkjchem-44-695-fig001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/4af90380d3e4/turkjchem-44-695-fig002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/1e31f47f9495/turkjchem-44-695-fig003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/2df8f7cd2208/turkjchem-44-695-fig004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/536b9a4af4dd/turkjchem-44-695-fig005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/cd8acda7e22b/turkjchem-44-695-fig006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e5cd/7671210/dc09289d5229/turkjchem-44-695-fig007.jpg

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本文引用的文献

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Heat transfer effect in scaling-up a fluidized bed reactor for propylene polymerization.用于丙烯聚合的流化床反应器放大过程中的传热效应。
RSC Adv. 2018 Aug 7;8(50):28293-28312. doi: 10.1039/c8ra04834g.
2
Direct Synthesis of Functionalized High-Molecular-Weight Polyethylene by Copolymerization of Ethylene with Polar Monomers.通过乙烯与极性单体共聚直接合成功能化高分子量聚乙烯。
Angew Chem Int Ed Engl. 2016 Oct 10;55(42):13281-13285. doi: 10.1002/anie.201607152.
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Microkinetic videomicroscopic analysis of olefin polymerization with a supported metallocene catalyst.
负载型茂金属催化剂烯烃聚合的微观动力学视频显微镜分析
Angew Chem Int Ed Engl. 2003 Oct 27;42(41):5090-3. doi: 10.1002/anie.200351582.