Preparation and characterization of hydroxyl terminated poly(2-ethylhexyl acrylate) and poly(2-ethylhexyl acrylate-urethane)

SUN Zhidan; LI Jian; REN Qiang; YU Qiang; WANG Hongdan

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Preparation and characterization of hydroxyl terminated poly(2-ethylhexyl acrylate) and poly(2-ethylhexyl acrylate-urethane)

更新时间：2025-12-10

- Preparation and characterization of hydroxyl terminated poly(2-ethylhexyl acrylate) and poly(2-ethylhexyl acrylate-urethane)
- CIESC Journal Issue 5, Pages: 1325-1330(2010)
- 作者机构：
  
  江苏工业学院材料科学与工程学院
- 作者简介：
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- Online First：05 May 2010，
  
  Published：05 May 2010
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SUN Zhidan, LI Jian, REN Qiang, et al. Preparation and characterization of hydroxyl terminated poly(2-ethylhexyl acrylate) and poly(2-ethylhexyl acrylate-urethane)[J]. CIESC Journal, 2010, (5): 1325-1330.
DOI：

SUN Zhidan, LI Jian, REN Qiang, et al. Preparation and characterization of hydroxyl terminated poly(2-ethylhexyl acrylate) and poly(2-ethylhexyl acrylate-urethane)[J]. CIESC Journal, 2010, (5): 1325-1330. DOI：

摘要

采用原子转移自由基聚合（ATRP）合成了分子量与设计分子量（2000）大小相符的聚丙烯酸异辛酯，再以N-甲基单乙醇胺作为亲核试剂，对活性端基溴进行亲核取代，得到了分子量可控、分子量分布较窄的线型端羟基聚丙烯酸异辛酯。以此为原料与甲苯二异氰酸酯（TDI）反应，制备得到了聚丙烯酸异辛酯-氨酯。利用核磁共振谱（1H NMR）、差示扫描量热仪（DSC）、热重示差扫描量热仪（TGA）对合成的端羟基聚丙烯酸异辛酯及聚丙烯酸酯异辛酯-氨酯的结构、热稳定性等进行了表征。结果表明，利用端羟基聚丙烯酸异辛酯成功地制备了聚丙烯酸异辛酯-氨酯，由凝胶渗透色谱仪（GPC）测得其分子量为10200，玻璃化转变温度为-54℃，是一种新型的丙烯酸酯与聚氨酯的共聚物。

Abstract

A well-defined hydroxyl terminated poly(2-ethylhexyl acrylate) was prepared by atom transfer radical polymerization (ATRP) of 2-ethylhexyl acrylate

followed by the nucleophilic substitution of the bromo end group with N-methylethanolamine.Poly(2-ethylhexyl acrylate-urethane) was then synthesized by reacting the hydroxyl terminated poly(2-ethylhexyl acrylate) with toluene diisocyanate (TDI).The polymers were characterized by nuclear magnetic resonance (1H NMR)

gel permeation chromatography (GPC)

differential scanning calorimetry (DSC) and thermogravimetric analysis(TGA).The results showed that a hydroxyl terminated poly(2-ethylhexyl acrylate) with Mn of 2000 and OH functionality of about 1.80 was synthesized by ATRP.The glass transition temperature (Tg) of the hydroxyl terminated poly(2-ethylhexyl acrylate) was about -62℃

which was slightly higher than that of 2-ethylhexyl acrylate homopolymer.The decomposition temperature of the hydroxyl terminated poly(2-ethylhexyl acrylate) was around 409℃.Poly(2-ethylhexyl acrylate-urethane) with Mn of about 10200 was prepared by reacting hydroxyl terminated poly(2-ethylhexyl acrylate) with toluene diisocyanate (TDI)

which had a glass transition temperature (Tg) of about -54℃.

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