A new model and measurement technique for dynamic shrinkage during photopolymerization of multi-acrylates

被引：18
作者：
Neo, WK
Chan-Park, MB
机构：
[1] Nanyang Technol Univ, Biol & Chem Proc Engn Lab, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore MIT Alliance Program, Singapore 639798, Singapore
[3] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 639798, Singapore
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2005年 / 26卷 / 12期
关键词：
FT-IR; kinetics (polym.); photopolymerization; shrinkage; simulations;
D O I：
10.1002/marc.200500134
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 novel experimental set-up has been devised to measure simultaneously, in real time, the conversion and shrinkage of multi-acrylates during photopolymerization. The data show that the current practice of assigning the excess volume entirely as excess free volume is inappropriate as this leads to an increasing fractional free volume with conversion. We propose to partition the excess volume into free and occupied volume components. The new model produces satisfactory results.
引用
收藏
页码：1008 / 1013
页数：6
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