China Plastics ›› 2025, Vol. 39 ›› Issue (3): 48-52.DOI: 10.19491/j.issn.1001-9278.2025.03.009

• Materials and Properties • Previous Articles     Next Articles

Effect of MMA quality on polymerization and polymer properties

SONG Yuexiao1(), ZHOU Guiyang1(), ZHANG Xiongwei1, ZHOU Lixia1, CHEN Yao1, YANG Zheng1, DENG Hangjun1, LI Zihao2, CAI Chenxi2, YIN Hong2   

  1. 1.Zhejiang NHU Special Materials Co,Ltd,Shaoxing 312369,China
    2.College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310058,China
  • Received:2024-05-28 Online:2025-03-26 Published:2025-03-24

Abstract:

In this paper, homopolymerization was carried out to prepare polymethyl methacrylate (PMMA) by using methyl methacrylate (MMA) as a monomer and azobisisobutyronitrile as an initiator. The effects of the chroma of MMA, water, and inhibitor contents on the polymerization process and properties of PMMA were investigated. The results indicated that the chroma of MMA should be controlled at below 6 in order to meet a requirement of optical grade for PMMA. There was no direct influence of water content on polymerization. Considering the forming process of PMMA and avoiding the hydrolysis of PMMA, it was recommended to control water content below 500 mg/kg. When the inhibitor content was less than 10 mg/kg, there was little effect on the polymerization and properties of PMMA, and MMA could be directly used as a monomer for its polymerization.

Key words: methyl methacrylate, polymethyl methacrylate, bulk polymerization

CLC Number: