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橡塑技术与装备（塑料） CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (PLASTICS)

[4] Shen D W, Yu H, Huang Y. Densely Grafting Copolymers [5] Shen D W, Yu H, Huang Y. Synthesis of graft copolymer of
of Ethyl Cellulose through Atom T ranfer Radical ethyl cellulose thrugh living polymerization and its self-
Polymerization[J]. Journal of Polymer Science:Part asembly[J]. Cellulose, 2006,13:235~244.
A:Polymer Chemistry, 2005, 43:4 099~4 108.

Synthesis and characterization of PMMA and PGMA by atom transfer
radical polymerization

Huang Cheng

(Jiangxi Building Materials Scientific Research & Design Institute, Nanchang 330001, Jiangxi, China)
Abstract: In this study, PMMA and PGMA were successfully synthesized by ATRP in ionic liquid,
ethylenediamine / CuBr as catalyst system and ethyl dibromoisobutyrate as initiator under certain
reaction conditions. The conversion rate was 70%. By changing some reaction conditions, such as reaction
temperature, reaction time, initiator dosage, ligand type and dosage, the polymer molecular weight and
molecular weight distribution can be precisely controlled. Through the characterization of ATR-FTIR and
1H-NMR, PMMA and PGMA were successfully synthesized. Gel permeation chromatography (GPC) was
used to test the molecular weight and molecular weight distribution of polymers. The results showed that
the reaction was a first-stage polymerization reaction, and the activity of the polymerization process was
controllable; the molecular weight of the polymer chain increased linearly with the increase of conversion.
The average molecular weight of the polymer was kept within a certain value, and the molecular weight
distribution was narrow.
Key words: atom transfer radical polymerization; entanglement molecular weight controllable; molecular
weight distribution; polymerization kinetics
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赫斯基致力于可持续包装解决方案
Husky is committed to sustainable packaging solutions

随着回收 PET 的高需求和可回收性成为许多品牌所有者的主要可持续目标，赫斯基注塑系统致力于为下一代
提供可持续包装解决方案。该公司表示，赫斯基一直以来都是具有社会责任感和环境意识的全球参与者，并致力
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对于寻找碳足迹更低、包含更多可回收内容包装的客户，赫斯基提供了一系列解决方案，以便在包装中使用
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“ 我们新的 PTE 预成型技术提供了广泛的解决方案，帮助我们的客户在他们的制造运营中实现最大的灵活性、
用户友好性、能效和生产力，” 赫斯基硬包装总裁 Robert Domodossola 在一份新闻稿中说。
赫斯基还在开发更节能的系统，并增加了轻量化能力和创新的系留封口设计，以满足回收和包装法规的要求。
赫斯基目前正在开发一种新的系统，专注于整合聚合酶链反应，使客户能够在未来 24 个月内每年将超过
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赫斯基负责创新和可持续发展的副总裁 Joachim Niewels 说： “ 使包装中含有更多可回收的内容、研究创新
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续性和价值，努力成为我们的客户、行业和环境的合作伙伴。”
摘编自“中塑在线”
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·56· 第 45 卷 第 22 期