Characterization of surface energetic heterogeneity of pure and poly (acrylic acid)-adsorbed carbon nanotubes by deconvoluting the nitrogen adsorption isotherm

2006 ◽  
Vol 38 (7) ◽  
pp. 1117-1121 ◽  
Author(s):  
Cui Juqing ◽  
Shan Haitao ◽  
Hu Baixing ◽  
Shen Jian
Keyword(s):  
Carbon Nanotubes ◽  
Adsorption Isotherm ◽  
Acrylic Acid ◽  
Nitrogen Adsorption ◽  
Nitrogen Adsorption Isotherm ◽  
Energetic Heterogeneity ◽  
Adsorbed Carbon ◽  
Poly Acrylic Acid

Fabrication and Characterization of Chitosan-Poly(acrylic acid) Magnetic Nanospheres

2009 ◽  
Vol 9 (2) ◽  
pp. 1287-1290 ◽  
Author(s):  
Yuqing Ge ◽  
Song Zhang ◽  
Shiying He ◽  
Yu Zhang ◽  
Ning Gu
Keyword(s):  
Acrylic Acid ◽  
Magnetic Nanospheres ◽  
Fabrication And Characterization ◽  
Poly Acrylic Acid

Preparation and characterization of a novel pH-sensitive Salecan-g-poly(acrylic acid) hydrogel for controlled release of doxorubicin

2015 ◽  
Vol 3 (13) ◽  
pp. 2685-2697 ◽  
Author(s):  
Xinyu Hu ◽  
Wei Wei ◽  
Xiaoliang Qi ◽  
Hao Yu ◽  
Liandong Feng ◽  
...  
Keyword(s):  
Controlled Release ◽  
Acrylic Acid ◽  
Ph Sensitive ◽  
Swelling Behaviour ◽  
Poly Acrylic Acid

The pH-sensitive swelling behaviour and DOX release of Salecan-g-PAA hydrogels are discussed.

scholarly journals Study on Shale Adsorption Equation Based on Monolayer Adsorption, Multilayer Adsorption, and Capillary Condensation

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Qing Chen ◽  
Yuanyuan Tian ◽  
Peng Li ◽  
Changhui Yan ◽  
Yu Pang ◽  
...  
Keyword(s):  
Adsorption Isotherm ◽  
Shale Gas ◽  
Size Structure ◽  
Capillary Condensation ◽  
Critical Role ◽  
Nitrogen Adsorption ◽  
Adsorption Model ◽  
Multilayer Adsorption ◽  
Nitrogen Adsorption Isotherm ◽  
Monolayer Adsorption

Shale gas is an effective gas resource all over the world. The evaluation of pore structure plays a critical role in exploring shale gas efficiently. Nitrogen adsorption experiment is one of the significant approaches to analyze pore size structure of shale. Shale is extremely heterogeneous due to component diversity and structure complexity. Therefore, adsorption isotherms for homogeneous adsorbents and empirical isotherms may not apply to shale. The shape of adsorption-desorption curve indicates that nitrogen adsorption on shale includes monolayer adsorption, multilayer adsorption, and capillary condensation. Usually, Langmuir isotherm is a monolayer adsorption model for ideal interfaces; BET (Brunauer, Emmett, Teller) adsorption isotherm is a multilayer adsorption model based on specific assumptions; Freundlich isotherm is an empirical equation widely applied in liquid phase adsorption. In this study, a new nitrogen adsorption isotherm is applied to simultaneously depict monolayer adsorption, multilayer adsorption, and capillary condensation, which provides more real and accurate representation of nitrogen adsorption on shale. In addition, parameters are discussed in relation to heat of adsorption which is relevant to the shape of the adsorption isotherm curve. The curve fitting results indicate that our new nitrogen adsorption isotherm can appropriately describe the whole process of nitrogen adsorption on shale.

Preparation and characterization of mucus-penetrating papain/poly(acrylic acid) nanoparticles for oral drug delivery applications

2012 ◽  
Vol 15 (1) ◽  
Author(s):  
Christiane Müller ◽  
Katharina Leithner ◽  
Sabine Hauptstein ◽  
Fabian Hintzen ◽  
Willi Salvenmoser ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Acrylic Acid ◽  
Oral Drug Delivery ◽  
Oral Drug ◽  
Drug Delivery Applications ◽  
Poly Acrylic Acid
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