Synthesis of 8-Anilino-1-naphthalenesulfonic Titanium Complex and Ethylene-norbornene Copolymerization

doi:10.7503/cjcu20120301

Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (12): 2784.doi: 10.7503/cjcu20120301

• Polymer Chemistry • Previous Articles Next Articles

Synthesis of 8-Anilino-1-naphthalenesulfonic Titanium Complex and Ethylene-norbornene Copolymerization

ZHANG Hao¹, ZHANG He-Xin², CAI Xiao-Ping³, HAO Xiu-Feng⁴, ZHANG Xue-Quan²

1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
3. Jilin Petrochemical Co. Ltd., PetroChina, Jilin 132021, China;
4. Department of Polymer Science, College of Chemistry, Jilin University, Changchun 130012, China

Received:2012-04-05 Online:2012-12-10 Published:2012-11-20

Abstract

Abstract:

The synthesized novel 8-anilino-1-naphthalenesulfonic titanium complex was used as catalyst for ethylene and norbornene copolymerization. The polymerization behavior of synthesized titanium complex was typically studied by varying various parameters, types of cocatalyst, concentration of norbornene, Al/Ti molar ratio, polymerization temperature and pressure. The resulting copolymers were characterized by ¹³C NMR, DSC and GPC. It was found that when methylaluminoxane(MAO) was used as cocatalyst, the catalytic activity was higher than that of triethyl aluminum(TEA) as cocatalyst under the same condition, and the copolymerization reaction mechanism was addition polymerization. In addition, the GPC curves of the copolymers showed a unimodal with a relatively narrow molecular weight distribution(M_w/M_n≈3). The incorporation ratio of the norbornene linear increased with the increase of norbornene feed ratio, while the melting point of the resulting copolymer was decreased with the norbornene feed ratio.

Key words: 8-Anilino-1-naphthalenesulfonic acid, Titanium complex, Ethylene, Norbornene, Copolymeri-zation

CLC Number:

O631.12

TrendMD:

ZHANG Hao, ZHANG He-Xin, CAI Xiao-Ping, HAO Xiu-Feng, ZHANG Xue-Quan. Synthesis of 8-Anilino-1-naphthalenesulfonic Titanium Complex and Ethylene-norbornene Copolymerization[J]. Chem. J. Chinese Universities, 2012, 33(12): 2784.

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Synthesis of 8-Anilino-1-naphthalenesulfonic Titanium Complex and Ethylene-norbornene Copolymerization

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