New biodegradable poly itaconic acid which substituted withdifferent primary amines such as 4-aminopyridine,2-aminopyrimidine, 2-amino naphthol, amoxilline, cephalexine.All the prepared polymers were characterized by IR.,UV.Spectroscopy, thermal analysis, chemical tests, C.H.N analysis andphysical properties were studied, and the intrinsic viscosities weredetermined at 30ºC.The swelling % of the prepared polymers were calculated. Weconcluded from all the results that the inserted different units as apendant groups which enhanced the biodegradable andbiocompatible behaviors of the prepared polymers.

In this research a new prodrug chitosan maleamide derivatives weresynthesis via reaction of amino group of chitosan with maleic anhydride thenconverted to its corresponding acyl chloride, of the chitosan maleatederivative (A1) was reacted with different drug-NH2 (A2-A5) such asprocaine, cephalexin, amoxicillin, and 4-aminoantipyrine.which could havepotential use as a natural drug delivery system as a sustain release throughhydrolysis of amide attachment in different pH values such as in acidic orbasic medium. These derivatives were characterized by FTIR and 1H-NMRspectroscopies. Controlled drug release was studied using UV. Spectroscopyat λmax 270nm gave a constant swelling percentage were measured indicatedcontrolling release with other advantages and to minimize the toxicity and theside effect. Thermal analysis such as TGA and DSC were studied indicatedthe thermally stableprodrug polymers.

(( ائي م (( ك اللام (( امض الماليئ (( ع ح (( ان م (( ل الكيتوس (( ن تفاع (( دة م (( ة الجدي (( اعدات الادوي (( ث مس (( ذا البح (( ي ه (( ر ف (( حضل (((( ذي يحم ((( ال (A تق( 1 (((( ا مش ((( ائي مكون (((( ك اللام ((( امض المالليت ((( ع ح (((( ان م ((( ة للكيتوس (((( ة الاميني ((( ل المجموع ((( ت ض ((( ع بع ((( ة م ((( ت مفاعلت ((( ذي تم ((( ل ال ((( امض المقاب ((( د الح ((( ى كلوري ((( ا ال ((( ن تحويله ((( رة يمك ((( يلية ح ((( ة كاربوكس ((( مجموعي ((( الت (A5-A ايرين ( 2 ((( ي ب ((( و انت ((( لين، 4-أمين ((( ين، اموكس ((( ائين، سيفالكس ((( ل البروك ((( ة مث ((( ة المختلف ((( ة الاميني ((( الادويية ((( ي دوال حامض ((( د، ف ((( ة الامي (( ائي لمجموع ((( ل الم ((( لال التحل (( ن خ ((( دوائيالمحكم م ((( رر ال (( ة التح ((( ة كأنظم ((( ا القابلي (( لهت ((( عة تح ((( ة الاش ((( رة بمطيافي ((( ة المحض ((( تقات البوليمري ((( ت المش ((( ة 37 م. شخص ((( ة بدرج ((( ية وقاعدي ((( ة حامض ((( مختلفف ((( تخدام طي ((( م باس ((( دوائي المحك ((( رر ال ((( رع التح ((( ت س ((( ي. ودرس ((( ووي المغناطيس ((( رنين الن ((( ة ال ((( راء ومطيافي ((( الحمة (( رة اربع (( ة لفت (( ز ثابت (( ي بتراكي (( رر دوائ (( ى تح (( ث اعط (( حي nm وجي 270 (( ول م (( د ط (( جية عن (( وق البنفس (( عة ف (( الاشرى ((( د الاخ ((( ى الفوائ ((( افة ال ((( دواء اض ((( ئ لل ((( رر البطي ((( د التح ((( ي تؤك ((( ة والت ((( اخ المئوي ((( بة الانتف ((( ت نس ((( ام، ودرس ((( ايج ((( وزني والمس ((( راري ال ((( ل الح ((( ل التحل ((( ة مث ((( ل الحراري ((( ت التحالي ((( ة، ودرس ((( ار الجانبي ((( مية والمض ((( ل الس ((( لتقليالمسعري التفاضلي الذي يدل على الثباتية الحرارية للبوليمرات الدوائية المساعدة.

Poly amid-amide --- Prodrug --- Natural Drug Polymer --- Controlled Release --- بولي أميد- أميد، البوليمرات الدوائية الطبيعية المساعدة، التحرر