A. Zioga et al., CHARACTERISTIC RATIO OF POLY(TETRAHYDROFURFURYL ACRYLATE) AND POLY(2-ETHYLBUTYL ACRYLATE), Journal of polymer science. Part B, Polymer physics, 35(10), 1997, pp. 1589-1592
The synthesis, characteristic ratio C-infinity and glass transition te
mperature (T-g) of poly(tetrahydrofurfuryl acrylate) (PTHFA) and of po
ly(2-ethylbutyl acrylate) (P2EBA) are reported. P2EBA has slightly low
er flexibility (C-infinity = 9.2) than PTHFA (C-infinity = 8.6), mainl
y because of the higher bulkiness of its side group and the closer pro
ximity to the main chain. The C-infinity results compared with the cor
responding polymethacrylates show an increase in flexibility due to th
e absence of the a-methyl group. Comparison with poly(methyl acrylate)
clearly shows the influence of the bulkiness of the side group on the
chain flexibility. The lower T-g of P2EBA than that of PTHFA may be e
xplained by the higher flexibility of the 2-ethylbutyl side group. (C)
1997 John Wiley & Sons, Inc.