Nanohybrid Polymeric Nucleating Agents: In Situ Decorated Carbon Nanotubes and Serial Nucleation Behaviors in a Melt-Miscible Crystalline/Crystalline Blend

2015 ◽  
Vol 216 (17) ◽  
pp. 1801-1807 ◽  
Author(s):  
Lijun Ye ◽  
Cuicui Ye ◽  
Xianchun Shi ◽  
Hengti Wang ◽  
Hongyan Zhao ◽  
...  
2003 ◽  
Vol 788 ◽  
Author(s):  
Shamal K. Mhetre ◽  
Yong. K. Kim ◽  
Steven. B. Warner ◽  
Prabir. K. Patra ◽  
Phaneshwar Katangur ◽  
...  

ABSTRACTThe main issues related with preparation of nanocomposites are dispersion, alignment and adhesion between carbon nanotubes and matrix. We are designing an approach where these issues are fully addressed. We combined a functionalization approach with in-situ technique of nanocomposites preparation. A good dispersion and intercalation of carbon nanotubes were observed in the prepared nanocomposites. A presence of strong interfacial region was also noted. It is also found that orientation of carbon nanotubes inside matrix can be done by mechanically stretching of nanocomposites. DSC analysis shows that inclusion of carbon nanotubes affects crystallization behavior of nylon 6 significantly and it is found that CNTs acts as nucleating agents.


RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 1109-1114
Author(s):  
Peng Lv ◽  
Yeyun Meng ◽  
Lingxia Song ◽  
Hao Pang ◽  
Weiqu Liu

A robust self-supported electrode was prepared by a facile combination of ultrasonic dispersion and consequent in situ polymerization.


2021 ◽  
Author(s):  
Shankar S. Narwade ◽  
Shivsharan M. Mali ◽  
Bhaskar R. Sathe

A study on the in situ decoration of ethylenediamine (EDA) on acid functionalized multi-walled carbon nanotubes (O-MWCNTs) for overall water splitting reactions at all pH as an efficient and inexpensive metal-free multifunctional electrocatalyst.


Author(s):  
N. A. Asli ◽  
N. E. A. Azhar ◽  
M. Z. Nurfazianawatie ◽  
K. M. Yusoff ◽  
H. Omar ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 533 ◽  
Author(s):  
Josué A. Torres-Ávalos ◽  
Leonardo R. Cajero-Zul ◽  
Milton Vázquez-Lepe ◽  
Fernando A. López-Dellamary ◽  
Antonio Martínez-Richa ◽  
...  

Design of a smart drug delivery system is a topic of current interest. Under this perspective, polymer nanocomposites (PNs) of butyl acrylate (BA), methacrylic acid (MAA), and functionalized carbon nanotubes (CNTsf) were synthesized by in situ emulsion polymerization (IEP). Carbon nanotubes were synthesized by chemical vapor deposition (CVD) and purified with steam. Purified CNTs were analyzed by FE-SEM and HR-TEM. CNTsf contain acyl chloride groups attached to their surface. Purified and functionalized CNTs were studied by FT-IR and Raman spectroscopies. The synthesized nanocomposites were studied by XPS, 13C-NMR, and DSC. Anhydride groups link CNTsf to MAA–BA polymeric chains. The potentiality of the prepared nanocomposites, and of their pure polymer matrices to deliver hydrocortisone, was evaluated in vitro by UV–VIS spectroscopy. The relationship between the chemical structure of the synthesized nanocomposites, or their pure polymeric matrices, and their ability to release hydrocortisone was studied by FT-IR spectroscopy. The hydrocortisone release profile of some of the studied nanocomposites is driven by a change in the inter-associated to self-associated hydrogen bonds balance. The CNTsf used to prepare the studied nanocomposites act as hydrocortisone reservoirs.


2009 ◽  
Vol 1240 ◽  
Author(s):  
Ji-Ye Kang ◽  
Su-Mi Eo ◽  
Loon-Seng Tan ◽  
Jong-Beom Baek

AbstractSingle-walled carbon nanotube (SWCNT) and multi-walled carbon nanotube (MWCNT) were functionalized with 3,4-diaminobenzoic acid via “direct” Friedel-Crafts acylation reaction in PPA/P2O5 to afford ortho-diamino-functionalized SWCNT (DIF-SWCNT) and MWCNT (DIF-MWCNT). The resultant DIF-SWCNT and DIF-MWCNT showed improved solubility and dispersibility. To improve interfacial adhesion between CNT and polymer matrix, the grafting of ABPBI onto the surface of DIF-SWCNT (10 wt%) or DIF-MWCNT (10 wt%) was conducted by simple in-situ polymerization of AB monomer, 3,4-diaminobenzoic acid dihydrochloride, in PPA. The resultant ABPBI-g-MWCNT and ABPBI-g-SWCNT showed improved the mechanical and electrical properties.


Carbon ◽  
2013 ◽  
Vol 61 ◽  
pp. 647-649 ◽  
Author(s):  
Qingze Jiao ◽  
Liang Hao ◽  
Qingyan Shao ◽  
Yun Zhao

2017 ◽  
Vol 9 (21) ◽  
pp. 17807-17813 ◽  
Author(s):  
Junming Su ◽  
Jiayue Zhao ◽  
Liangyu Li ◽  
Congcong Zhang ◽  
Chunguang Chen ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document