[1. V. A. Kemenova, R. I. Moustafine, K. V. Alekseyev, A. M. Scorodinskaya, A. B. Zezin, A. I. Tencova and V. A. Kabanov, Applying interpolymer complexes in pharmacy, Pharmacia 60 (1991) 67-72.]Search in Google Scholar
[2. E. Tsuchida and K. Abe, Interactions between macromolecules in solution and intermacromolecular complexes, Adv. Polym. Sci. 45 (1982) 1-147; DOI: 10.1007/BFb0017548.10.1007/BFb0017548]Search in Google Scholar
[3. B. Philipp, H. Dautzenberg, K. J. Linow, J. Koetz and W. Dawydoff, Polyelectrolyte complexes- -recent developments and open problems, Progr. Polym. Sci. 14 (1989) 91-172; DOI: 10.1016/ 0079-6700(89)90018-X.10.1016/0079-6700(89)90018-X]Search in Google Scholar
[4. J. Koetz, H. Koepke, G. Schmidt-Naake and O. Vogl, Polyanion-polycation complex formation as a function of the position of the functional groups, Polymer 37 (1996) 2775-2781; DOI: 10.1016/ 0032-3861(96)87641-5.10.1016/0032-3861(96)87641-5]Search in Google Scholar
[5. S. Dumitriu and E. Chornet, Inclusion and release of proteins from polysaccharide-based polyion complexes, Adv. Drug Deliv. Rev. 31 (1998) 223-246; DOI: 10.1016/S0169-409X(97)00120-8.10.1016/S0169-409X(97)00120-8]Search in Google Scholar
[6. G. Dhanuja, B. Smitha and S. Sridhar, Pervaporation of isopropanol-water mixtures through polyion complex membranes, Sep. Purif. Technol. 44 (2005) 130-138; DOI: 10.1016/j.seppur.2005. 01.001.]Search in Google Scholar
[7. C. Tapia, E. Costa, M. Moris, J. Sapag-Hagar, F. Valenzuela and C. Basualto, Study of the influence of the pH media dissolution, degree of polymerization and degree of swelling of the polymers on the mechanism of release of diltiazem from matrices based on mixtures of chitosan/ alginate, Drug Dev. Ind. Pharm. 28 (2002) 217-224; DOI: 10.1081/DDC-120002455.10.1081/DDC-120002455]Search in Google Scholar
[8. R. K. Chang, Y. Peng, N. Trivedi and A. J. Shukla, Polymethacrylate, in Handbook of Pharmaceutical Excipients (Ed. R. C. Rowe, P. J. Sheskey and M. E Quinn), Pharmaceutical Press and American Pharmacists Association, USA 2009, pp. 525-533.]Search in Google Scholar
[9. S. K. Bajpai and S. Shubhra, Investigation of swelling/degradation behaviour of alginate beads crosslinked with Ca2+ and Ba2+ ions, Reac. Func. Poly. 59 (2004) 129-140; DOI: 10.1016/ j.reactfunctpolym.2004.01.002.10.1016/j.reactfunctpolym.2004.01.002]Search in Google Scholar
[10. S. Takka and F. Acartürk, Calcium alginate microparticles for oral administration: I-Effect of sodium alginate type on drug release and drug entrapment efficiency, J. Microencapsul. 16 (1999) 275-290; DOI: 10.1080/026520499289013.10.1080/02652049928901310340214]Search in Google Scholar
[11. C. V. Liew, L. W. Chan, A. L. Ching and P. W. Heng, Evaluation of sodium alginate as drug release modifier in matrix tablets, Int. J. Pharm. 309 (2006) 25-37; DOI: 0.1016/j.ijpharm.2005. 10.040.10.1016/j.ijpharm.2005.10.04016364576]Search in Google Scholar
[12. Martindale: The Complete Drug Reference (Ed. P. Kathleen), 35th ed., The Pharmaceutical Press, London 2007, pp. 1136-1138.]Search in Google Scholar
[13. R. I. Moustafine, I. M. Zaharov and V. A. Kemenova, Physicochemical and drug release properties of Eudragit®E PO/Eudragit®L 100-55 interpolyelectrolyte complexes, Eur. J. Pharmac. Biopharmac. 63 (2006) 26-36; DOI: 10.1016/j.ejpb.2005.10.005.10.1016/j.ejpb.2005.10.00516380241]Search in Google Scholar
[14. H. J. Prado, M. C. Matulewicz, P. Bonelli and A. L. Cukierman, Basic butylated methacrylate copolymer/ kappa-carrageenan interpolyelectrolyte complex: Preparation, characterization and drug release behaviour, Eur. J. Pharmac. Biopharmac. 70 (2008) 171-178; DOI: 10.1016/j.ejpb.2008.04.017.10.1016/j.ejpb.2008.04.01718583115]Search in Google Scholar
[15. A. Bani-Jaber, L. Al-Aani, H. Alkhatib and B. Al-Khalidi, Prolonged intragastric drug delivery mediated by Eudragit® E-carrageenan, polyelectrolyte matrix tablets, AAPS Pharm. Sci. Tech. 12 (2011) 354-361; DOI: 10.1208/s12249-011-9595-0.10.1208/s12249-011-9595-0]Search in Google Scholar
[16. A. H. Abd El-Gawad, E. M. Ramadan, O. A. Soliman and R. M. Yusif, Formulation and in-vivo study of diltiazem hydrochloride tablets prepared using interpolymer complexes, BJPR 2 (2012) 17-40.10.9734/BJPR/2014/1049]Search in Google Scholar
[17. R. W. Korsmeyer, R. Gurny, E. M. Doelker, P. Buri and N. A. Peppas, Mechanism of solute release from porous hydrophilic polymers, Int. J. Pharm. 15 (1983) 25-35; DOI: 10.1016/0378-5173 (83)90064-9.]Search in Google Scholar
[18. R. I. Moustafine, V. A. Kemenova, and G. Van den Mooter, Characteristics of interpolyelectrolyte complexes of Eudragit E100 with sodium alginate, Int. J. Pharm. 294 (2005) 113-120; DOI: 10.1016/j.ijpharm.2005.01.029.10.1016/j.ijpharm.2005.01.029]Search in Google Scholar
[19. J. P. Soares, J. E. Santos, G. O. Chierice and ETG Cavalheiro, Thermal behavior of alginic acid and its sodium salt, Eclet Quim. 29 (2004) 57-64; DOI: 10.1590/S0100-46702004000200009.10.1590/S0100-46702004000200009]Search in Google Scholar
[20. S. Y. Lin, H. L. Yu and M. J. Li, Formation of six-membered cyclic anhydrides by thermally induced intramolecular ester condensation in Eudragit E film, Polymer 40 (1999) 3589-3593; DOI: 10.1016/S0032-3861(98)00488-1.10.1016/S0032-3861(98)00488-1]Search in Google Scholar
[21. K. Saeio, Y. Pongpaibul, H. Vierstein and S. Okonogi, Factors influencing drug dissolution characteristic from hydrophilic polymer matrix tablet, Sci. Pharm. 75 (2007) 147-163; DOI: 10.3797/ scipharm.2007.75.147.10.3797/scipharm.2007.75.147]Search in Google Scholar
[22. V. M. Rao, K. Engh and Y. Qiu, Design of pH-independent controlled release matrix tablets for acidic drugs, Int. J. Pharm. 252 (2003) 81-86; DOI: 10.1016/S0378-5173(02)00622-1.10.1016/S0378-5173(02)00622-1]Search in Google Scholar
[23. W. M. Obeidat, A. H. Abuznait and A. S. Sallam, Sustained release tablets containing soluble polymethacrylates: Comparison with tableted polymethacrylate IPEC polymers, AAPS Pharm. Sci. Tech. 11 (2010) 54-63; DOI: 10.1208/s12249-009-9348-5.10.1208/s12249-009-9348-5]Search in Google Scholar
[24. M. E. C. Aldrete and L. V. Robles, Influence of the viscosity grade and particle size of HPMC on metronidazole release from matrix tablets, Eur. J. Pharmac. Biopharmac. 43 (1997) 173-178; DOI: 10.1016/S0939-6411(96)00004-5.10.1016/S0939-6411(96)00004-5]Search in Google Scholar
[25. J. Siepmann, H. Kranz, R. Bodmeier and N. A. Peppas, HPMC-matrices for controlled drug delivery: a new model combining diffusion, swelling and dissolution mechanisms and predicting the release kinetics, Pharm. Res. 16 (1999) 1748-1756; DOI: 10.1023/A:1018914301328.10.1023/A:1018914301328]Search in Google Scholar
[26. C. Tapia, Z. Escobar, E. Costa, J. S. Hagar, F. Valenzuela, C. Basualto, M. N. Gai and M. Y. Pedram, Comparative studies on polyelectrolyte complexes and mixtures of chitosan-alginate and chitosan-carrageenan as prolonged diltiazem chlorhydrate release systems, Eur. J. Pharmac. Biopharmac. 57 (2004) 65-75; DOI: 10.1016/S0939-6411(03)00153-X.10.1016/S0939-6411(03)00153-X]Search in Google Scholar
[27. H. M. Fahmy and M. M. G. Fouda, Crosslinking of alginic acid/chitosan matrices using polycarboxylic acids and their utilization for sodium diclofenac release, Carbohyd. Polym. 73 (2008) 606-611; DOI: 10.1016/j.carbpol.2007.12.024.10.1016/j.carbpol.2007.12.02426048227]Search in Google Scholar
[28. K. Satoh, K. Takayama, Y. Machida, Y. Suzuki and T. Nagai, Disintegration and dissolution characteristics of compressed tablets consisting of hydroxypropyl cellulose and carboxyvinyl polymer, Chem. Pharm. Bull. 37 (1989) 1642-1644.10.1248/cpb.37.1642]Search in Google Scholar
[29. M. M. Talukdar, I. Vinckier, P. Moldenaers and R. Kinget, Rheological characterization of xanthan gum and hydroxypropylmethyl cellulose with respect to controlled-release drug delivery, J. Pharm. Sci. 85 (1996) 537-540; DOI: 10.1021/js950476u.10.1021/js950476u8742947]Search in Google Scholar
[30. D. Ray, P. S. Gils, G. P. Mohanta, R. Manavalan and P. K. Sahoo, Comparative delivery of diltiazem hydrochloride through synthesized polymer. Hydrogel and hydrogel microspheres, J. Appl. Polym. Sci. 116 (2010) 959-968; DOI: 10.1002/app.31661. 10.1002/app.31661]Search in Google Scholar