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.
Primitive chain network simulations for asymmetric star polymers
Rent:
Rent this article for
USD
10.1063/1.3590276
/content/aip/journal/jcp/134/19/10.1063/1.3590276
http://aip.metastore.ingenta.com/content/aip/journal/jcp/134/19/10.1063/1.3590276

Figures

Image of FIG. 1.
FIG. 1.

Linear viscoelastic behavior of linear, symmetric star, and asymmetric star polymers from top to bottom. Solid and dashed curves show simulated G and G , respectively, and the symbols are taken from Ref. 20.

Image of FIG. 2.
FIG. 2.

Simulated relaxation modulus of the branch polymers examined in Fig. 1. The circle, dotted curve, and thin solid curve, respectively, show the modulus for a case of both curvilinear hopping and fluctuation of the branch point, only the branch point fluctuation and no motion of the branch point.

Image of FIG. 3.
FIG. 3.

Time evolution of the accumulated number of the curvilinear hopping per molecule obtained from the simulation data. Solid and broken lines show A2B73K60 and A3B182K60, respectively.

Image of FIG. 4.
FIG. 4.

Mean square displacement of the branch point (circle) and squared mesh size of fully dilated network a (t)2 = a 2/φ(t) (thick dash-dot curve) for the polymers examined in Fig. 1. For branched polymers, MSD and a (t)2 without the curvilinear hopping mechanism are shown by thin solid and dash-dot curves.

Image of FIG. 5.
FIG. 5.

Relaxation modulus for a series of asymmetric star polymers with various lengths of short arm (Z a) and a fixed length of backbone arm (Z b = 16, and the backbone length is 2Z b = 32). Circles are for simulations with the fluctuation and hopping mechanisms of branch point motion, thin dashed curves are only with the fluctuation mechanism, and thin solid curve is without any branch point motion.

Image of FIG. 6.
FIG. 6.

Mean square displacement MSD of the branch point (circle) and squared mesh size of fully dilated network a (t)2 = a 2/φ(t) (dash-dot curves) for the asymmetric star polymers examined in Fig. 5.

Image of FIG. 7.
FIG. 7.

Relaxation modulus for a series of asymmetric star polymers with various lengths of backbone arm (Z b) and a fixed length of short arm (Z a = 5). Circles are for simulations with the fluctuation and hopping mechanisms of branch point motion, thin dashed curves are only with the fluctuation mechanism, and thin solid curve is without any branch point motion.

Image of FIG. 8.
FIG. 8.

Mean square displacement MSD of the branch point (circle) and squared mesh size of fully dilated network a (t)2 = a 2/φ(t) (dash-dot curves) for the asymmetric star polymers examined in Fig. 7.

Tables

Generic image for table
Table I.

Architecture of the polymers examined in Figs. 1–4. Z indicates average number of entanglement segments for the short arm (Z a), the backbone arm (Z b) and the molecule as a whole (Z t). Sample code corresponds to Ref. 20.

Generic image for table
Table II.

Characteristic times for the asymmetric star polymers in Figs. 1–4.

Loading

Article metrics loading...

/content/aip/journal/jcp/134/19/10.1063/1.3590276
2011-05-17
2014-04-20
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Primitive chain network simulations for asymmetric star polymers
http://aip.metastore.ingenta.com/content/aip/journal/jcp/134/19/10.1063/1.3590276
10.1063/1.3590276
SEARCH_EXPAND_ITEM