In situ formation of polypropylene (PP) fibrils in the olefinic block copolymer (OBC): effect of viscosity ratio and OBC block architecture

RSC Advances ◽  
2015 ◽  
Vol 5 (104) ◽  
pp. 85442-85445 ◽  
Author(s):  
Zhen Li ◽  
Chengxiao Sun ◽  
Xiaoyu Li ◽  
Qin Zhang ◽  
Qiang Fu
Keyword(s):  
Block Copolymer ◽  
Viscosity Ratio ◽  
In Situ Formation

The universality of MFC concept is proven by using different PP to modify OBC with variable structures.

Phase Behavior of Alkyne-Functionalized Styrenic Block Copolymer/Cobalt Carbonyl Adducts and in Situ Formation of Magnetic Nanoparticles by Thermolysis

2016 ◽  
Vol 49 (3) ◽  
pp. 853-865 ◽  
Author(s):  
Bingyin Jiang ◽  
Dmytro Nykypanchuk ◽  
Maya K. Endoh ◽  
Xianyin Chen ◽  
Bin Qian ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Block Copolymer ◽  
Phase Behavior ◽  
Cobalt Carbonyl ◽  
In Situ Formation

Morphology and Mechanical Properties of PA6/ABS Blends

2012 ◽  
Vol 535-537 ◽  
pp. 2600-2605 ◽  
Author(s):  
Jian Bing Guo ◽  
Kai Zhou Zhang ◽  
Shu Hao Qin
Keyword(s):  
Mechanical Properties ◽  
Viscosity Ratio ◽  
Acrylonitrile Butadiene Styrene ◽  
Melt Processing ◽  
Graft Polymers ◽  
In Situ Formation ◽  
Styrene Maleic Anhydride ◽  
Morphology And Mechanical Properties ◽  
Butadiene Styrene

The toughness of blends composed of PA6 and acrylonitrile-butadiene-styrene (ABS) compatibilized by using styrene-maleic anhydride (SMA) as a compatibilizer was measured over a wide temperature region. The addition of SMA results in a significant increase of the PA6 phase viscosity due to the in situ formation of graft polymers during the melt processing, and the significant change in viscosity ratio between the PA6 and ABS due to the formation of SMA-g-PA6 graft polymer may be prevent the coalescence of the dispersed phase. All results in this paper were consistent, and showed the good interaction between PA6 and ABS, which were proved by the morphology and mechanical properties of the blends.

In Situ Formation of Gold-“Decorated” Vesicles from a RAFT-Synthesized, Thermally Responsive Block Copolymer§

2007 ◽  
Vol 40 (24) ◽  
pp. 8524-8526 ◽  
Author(s):  
Yuting Li ◽  
Adam E. Smith ◽  
Brad S. Lokitz ◽  
Charles L. McCormick
Keyword(s):  
Block Copolymer ◽  
Thermally Responsive ◽  
In Situ Formation

scholarly journals Formation of compact systems of super-Earths via dynamical instabilities and giant impacts

2019 ◽  
Vol 491 (4) ◽  
pp. 5595-5620 ◽  
Author(s):  
Sanson T S Poon ◽  
Richard P Nelson ◽  
Seth A Jacobson ◽  
Alessandro Morbidelli
Keyword(s):  
Initial Conditions ◽  
Post Processing ◽  
Significant Modification ◽  
Kepler Mission ◽  
Giant Impacts ◽  
Low Mass ◽  
In Situ Formation ◽  
Dynamical Instabilities ◽  
Gaseous Envelopes

ABSTRACT The NASA’s Kepler mission discovered ∼700 planets in multiplanet systems containing three or more transiting bodies, many of which are super-Earths and mini-Neptunes in compact configurations. Using N-body simulations, we examine the in situ, final stage assembly of multiplanet systems via the collisional accretion of protoplanets. Our initial conditions are constructed using a subset of the Kepler five-planet systems as templates. Two different prescriptions for treating planetary collisions are adopted. The simulations address numerous questions: Do the results depend on the accretion prescription?; do the resulting systems resemble the Kepler systems, and do they reproduce the observed distribution of planetary multiplicities when synthetically observed?; do collisions lead to significant modification of protoplanet compositions, or to stripping of gaseous envelopes?; do the eccentricity distributions agree with those inferred for the Kepler planets? We find that the accretion prescription is unimportant in determining the outcomes. The final planetary systems look broadly similar to the Kepler templates adopted, but the observed distributions of planetary multiplicities or eccentricities are not reproduced, because scattering does not excite the systems sufficiently. In addition, we find that ∼1 per cent of our final systems contain a co-orbital planet pair in horseshoe or tadpole orbits. Post-processing the collision outcomes suggests that they would not significantly change the ice fractions of initially ice-rich protoplanets, but significant stripping of gaseous envelopes appears likely. Hence, it may be difficult to reconcile the observation that many low-mass Kepler planets have H/He envelopes with an in situ formation scenario that involves giant impacts after dispersal of the gas disc.

scholarly journals Method for determining the thermal conductivity of in situ formation rock using drilling cuttings

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065015
Author(s):  
Fu Yi ◽  
Xupeng Qi ◽  
Xuexin Zheng ◽  
Huize Yu ◽  
Wenming Bai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
In Situ Formation

scholarly journals In situ formation of a carbon nanotube buckypaper for improving the interlaminar properties of carbon fiber composites

2021 ◽  
Vol 202 ◽  
pp. 109535
Author(s):  
Yadong Wu ◽  
Xiuyan Cheng ◽  
Shaoyun Chen ◽  
Bo Qu ◽  
Rui Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
In Situ Formation
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