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Investigation of the gelation process by in‐situ interferometry
Author(s) -
Guan Ying,
Chen Qiang,
Zhang Xianmin,
Peng Yuxing,
Xu Jian
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20000901)21:14<998::aid-marc998>3.0.co;2-g
Subject(s) - photoinitiator , in situ , interferometry , polymerization , materials science , photopolymer , process (computing) , polymer chemistry , chemical engineering , composite material , chemistry , optics , polymer , monomer , organic chemistry , computer science , physics , operating system , engineering
An in‐situ interferometric technique was established to investigate the gelation process of poly(acrylic acid) (PAA) gel. The basic principles of the in‐situ interferometric technique is illustrated. It can provide sufficient information for a non‐destructive and successful investigation throughout the whole gelation process. Moreover, the effect of the photoinitiator concentration on the gelation process was studied. The polymerization rate of AA increases with increasing the concentration of the photoinitiator. The error caused by thermal effects during the gelation process can be neglected.