材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
論文
ナイロン6の等温結晶化過程の動的粘弾性
柏原 久彦高橋 雅興浦山 健治瀧川 敏算
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2005 年 54 巻 1 号 p. 56-59

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The variation of dynamic viscoelasticity during isothermal crystallization of Nylon6 is investigated. The time dependence of the crystallinity evaluated from DSC (xH) is compared with that of the crystallinity defined by dynamic measurements (xG) as (Gt - G0)/(G - G0) where Gt, G0 and G are the moduli at concerning time, in the initial molten and fully crystallized states, respectively. The onset of the increase in xG is retarded as compared with xH, while xG becomes identical with xH in the later crystallization process. These features are commonly observed in Nylon6 and polybutene-1 varying significantly in viscoelasticity before crystallization as well as the size of spherulites. The relation between xG and xH is well explained by considering the morphological change of system resulting from the growth of spherulite domains.

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© 2005 日本材料学会
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