1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Increase of long-chain branching by thermo-oxidative treatment of LDPE: Chromatographic, spectroscopic, and rheological evidence
Rent:
Rent this article for
USD
10.1122/1.4763567
/content/sor/journal/jor2/57/1/10.1122/1.4763567
http://aip.metastore.ingenta.com/content/sor/journal/jor2/57/1/10.1122/1.4763567

Figures

Image of FIG. 1.
FIG. 1.

Linear-viscoelastic data of LDPE T0 at 170 °C. Continuous lines indicate the fit by use of discrete relaxation spectrum of Table I .

Image of FIG. 2.
FIG. 2.

Change in MWD for thermo-oxidative degraded samples in (a) one thermal cycle and (b) two thermal cycles. (c) Contrast between one and two cycle degraded samples.

Image of FIG. 3.
FIG. 3.

Change in (a) weight average molecular weight, (b) polydispersity, and (c) intrinsic viscosity as a function of the total degradation time for the samples thermo-oxidativelly treated in one (closed symbols) and two (open symbols) thermal cycles. The results are presented as a function of the cumulative thermo-oxidative degradation time.

Image of FIG. 4.
FIG. 4.
Image of FIG. 5.
FIG. 5.

Carbonyl (squares) and double bond (circles) indices for samples with (a) one and (b) two thermal cycles. The results are presented as a function of the cumulative thermo-oxidative degradation time.

Image of FIG. 6.
FIG. 6.
Image of FIG. 7.
FIG. 7.
Image of FIG. 8.
FIG. 8.

Nonlinear parameter of the (a) MSF model including the result obtained for LDPE 3020D in Rolón-Garrido et al. (2011a) and (b) Wagner-I constitutive equation as a function of the cumulative thermo-oxidative degradation time.

Image of FIG. 9.
FIG. 9.

Nonlinear parameter of the (a) MSF model and (b) Wagner-I constitutive equation as a function of the measured intrinsic viscosity.

Tables

Generic image for table
TABLE I.

Relaxation spectrum of LDPE-T0 obtained from the measurement at 170 °C and for LDPE-O90 obtained through the Levenberg–Marquardt technique based on the experimental data of the start-up of elongational flow.

Generic image for table
TABLE II.

Nonlinear parameters used for the simulations performed.

Loading

Article metrics loading...

/content/sor/journal/jor2/57/1/10.1122/1.4763567
2012-11-07
2014-04-23
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Increase of long-chain branching by thermo-oxidative treatment of LDPE: Chromatographic, spectroscopic, and rheological evidence
http://aip.metastore.ingenta.com/content/sor/journal/jor2/57/1/10.1122/1.4763567
10.1122/1.4763567
SEARCH_EXPAND_ITEM