Gelator In Situ Modify PMMA

Authors :: Chen, Si
Xu, Jian Ming
Tang, Guo Dong
Wang, Xu
Source :: Applied Mechanics and Materials; October 2011, Vol. 130 Issue: 1 p1528-1531, 4p
Publication Year :: 2011
Abstract: Gelator (G<subscript>2</subscript>-C<subscript>12</subscript>-G<subscript>2</subscript>) was synthesized successfully, the structure of which was confirmed by <superscript>1</superscript>H-NMR and Mass spectra (MS). And G<subscript>2</subscript>-C<subscript>12</subscript>-G<subscript>2</subscript> was used to modify PMMA by “in-situ” polymerization. The results of gel permeation chromatography (GPC) showed that Mn and M<subscript>w</subscript>/M<subscript>n</subscript> of the PMMA composite were barely influenced by the incorporation of gel. The results of dynamic mechanical analysis (DMA) showed that the modified PMMA had higher modulus, toughness and glass transition temperature (T<subscript>g</subscript>) than pure PMMA. Furthermore the results of spectrophotometer showed that the transparency of modified PMMA was nearly the same as pure PMMA .