scholarly journals Comparison Between the Effect of Strongly and Weakly Cationic Exchange Resins on Matrix Physical Properties and the Controlled Release of Diphenhydramine Hydrochloride from Matrices

2010 ◽  
Vol 11 (3) ◽  
pp. 1104-1114 ◽  
Author(s):  
Prasert Akkaramongkolporn ◽  
Kaewnapa Wongsermsin ◽  
Praneet Opanasopit ◽  
Tanasait Ngawhirunpat
Keyword(s):  
Controlled Release ◽  
Physical Properties ◽  
Diphenhydramine Hydrochloride ◽  
Cationic Exchange ◽  
Exchange Resins

Oxidative decomposition properties of cationic exchange resins producing SO42− in power plants

2015 ◽  
Vol 71 (10) ◽  
pp. 1478-1484
Author(s):  
Zhiping Zhu ◽  
Chenlin Dai ◽  
Sen Liu ◽  
Ye Tian
Keyword(s):  
Data Analysis ◽  
Organic Carbon ◽  
Power Plants ◽  
Strong Acid ◽  
Residual Chlorine ◽  
Sulphate Content ◽  
Cationic Exchange ◽  
Exchange Resins ◽  
Dynamic Cycle ◽  
Decomposition Properties

The sulphate content of a system increases when strong-acid cationic exchange resins leak into a system or when sulphonic acid groups on the resin organic chain detach. To solve this problem, a dynamic cycle method was used in dissolution experiments of several resins under H2O2 or residual chlorine conditions. Results show that after performing dynamic cycle experiments for 120 hours under oxidizing environments, the SO42− and total organic carbon (TOC) released by four kinds of resins increased with time, contrary to their release velocity. The quantity of released SO42− increased as the oxidizing ability of oxidants was enhanced. Results showed that the quantity and velocity of released SO42− under residual chlorine condition were larger than those under H2O2 condition. Data analysis of SO42− and TOC released from the four kinds of resins by the dynamic cycle experiment revealed that the strength of oxidation resistance of the four resins were as follows: 650C > 1500H > S200 > SP112H.

Prediction of physical properties of a novel polysaccharide controlled release system. I

1996 ◽  
Vol 128 (1-2) ◽  
pp. 113-122 ◽  
Author(s):  
Michael J. Tobyn ◽  
John N. Staniforth ◽  
Anand R. Baichwal ◽  
Troy W. McCall
Keyword(s):  
Controlled Release ◽  
Physical Properties ◽  
Release System ◽  
Controlled Release System

Modifying the physical properties of dairy protein films for controlled release of antifungal agents

2014 ◽  
Vol 39 ◽  
pp. 195-203 ◽  
Author(s):  
Magdalini Moditsi ◽  
Athina Lazaridou ◽  
Thomas Moschakis ◽  
Costas G. Biliaderis
Keyword(s):  
Controlled Release ◽  
Physical Properties ◽  
Antifungal Agents ◽  
Protein Films ◽  
Dairy Protein
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