SAXS study of polyamide 6 swollen in methanol

Abstract

VIw effect of tlic annealing teinperature on the structure of unoricnted 1ut.yainidc 6 was studied by swelling in methanol ;ind sinnll-anglc X-ray scatteiiiig. Tlic observed values of mean-square fluctuations of scattering density can be c.splaiiiet1 1)s using 11 rnotlel with aii iiiliornogerieously swelling amorphous phase. An increase in the annealing tempcriiture iiiiprovcbs tlic iiitcriial structure of tlie lairiellae atid reduces coarseness of tlicir surface. The conceutration o f pnlynit*r cli;iiiis in the ceiitri. o f the swollen amorphous interlayer strongly tlccreases. SLLSS-~~rrter.siic.tiurigeti u n irr hlr!/iunol gepollenem Pvlyurtiiil GI k r l < i d l t d \ t l e r Teriipertcrlipel.:itiir auf die Struktiir von iinorienticrtcrn I'olyaniid fi wiirile diircli Quellung iu Metliaiiol iriid Huiitgenkleiiiwiiikelstreuuiig untersuclit. Die gefuntlenen Werte dcr niittlereii quadratisclien I~luktuationcn der Streiiilictite kiiiiiieii durcli eiii Moclell iriit ciner inlioinogen quellcntlcn amorplien Phase erklirt werden. Die Erholiung cler Teliil"'tcniperatiir verbcssert die innerc Struktiii. iler Lariiellen uriil verringert die Rauliigkeit ilti-cr Oberfliiclie. Uiv I<oiizt*iit ratioti (1t.r Polyriierltetteii ini Z~i i t r i i n i (Ivr gequ~illi~neii aniorplicii Zwisclienscliiclit niinnit stark ab.