Pushing the Limit: Pulsed Laser Polymerization of n-Butyl Acrylate at 500 Hz

被引：84

作者：

Barner-Kowollik, Christopher ^{[1
]}

Guenzler, Fabian ^{[1
]}

Junkers, Thomas ^{[1
]}

机构：

[1] Univ Karlsruhe TH, Karlsruhe Inst Technol, Inst Tech Chem & Polymerchem, D-76128 Karlsruhe, Germany

来源：

MACROMOLECULES | 2008年 / 41卷 / 23期

关键词：

D O I：

10.1021/ma8020932

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A study was conducted to demonstrate the determination of n-butyl acrylate (BA) kp from pulsed laser polymerization (PLP) at 500 Hz repetition rate up to 70 °C. Bulk monomer solutions of BA containing 5 × 10 -3 mol L-1 initiator (2,2-dimethoxyacetophenone (DMPA) were transferred into sample vials and sealed with rubber septa. Oxygen was removed by pumping the samples with nitrogen for about 2 minutes and the sample vial was placed into a stainless steel sample holder that was brought to temperature by a thermostat. The samples were allowed to equilibrate in temperature for about 5 minutes and were initiated by laser pulsing at constant repetition rates of up to 500 Hz. It was demonstrated that high laser energies provided high initiating radical concentrations that were favorable for conducting PLP investigations.

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页码：8971 / 8973

页数：3

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