HCP hydroxypropyl cellulose to HPMM poly(methacrylic acid-co-methyl methacrylate).pdf

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1、HCPhydroxypropylcellulosePARAMETERUNITVALUEREFERENCESGENERALCommonnamehydroxypropylcelluloseCASnamecellulose2hydroxypropyletherAcronymHPCCASnumber9004642RETECSnumberNF9050000HISTORYPersontodiscoverHagedorn,M;Moeller,PHagedorn,M;Moeller,P,USPatent1,994,038,IGFarben,Mar.12,1935.Da

2、te1935(Germanapplication1929)DetailstechnologyofproductionpatentedSYNTHESISMonomer(s)structurecellulose,CHO36Monomer(s)CASnumber(s)9004346;75569Monomer(s)molecularweight(s)dalton,g/160,000560,000;58.08mol,amuMethodofsynthesiscelluloseisconvertedtoalkalicellulosebyreactingitwiths

3、odiumhydroxidesolution,subsequently,propyleneoxideisusedtoobtainfinalproductMassaveragemolecularweight,dalton,g/11,700500,0000Mmol,amuwRadiusofgyrationnm33Nilsson,S;Sundelof,LO;Porsch,CarbohydratePolym.,28,26575,1995.STRUCTURECrystallinity%18.320.6Matsuoo,M;Yanagida,N,Polymer,32,

4、14,256176,1991.Celltype(lattice)tetragonalSamuels,RJ,J.Polym.Sci.,A2,7,1197,1969.Celldimensionsnma:b:c=1.13:1.13:1.50Samuels,RJ,J.Polym.Sci.,A2,7,1197,1969.Numberofchainsperunitcell2Samuels,RJ,J.Polym.Sci.,A2,7,1197,1969.Chainconformation3/1helixSamuels,RJ,J.Polym.Sci.,A2,7,1197

5、,1969.COMMERCIALPOLYMERSSomemanufacturersHerculesTradenamesKlucelPHYSICALPROPERTIESDensityat20oCgcm-31.171.21;1.09(amorphous);2.05(crystalline)Bulkdensityat20oCgcm-30.290.40ColorwhitetooffwhiteRefractiveindex,20oC1.3370OdorodorlessHANDBOOKOFPOLYMERS/Copyrights2012;ChemTecPublish

6、ing147HCPhydroxypropylcellulosePARAMETERUNITVALUEREFERENCESMeltingtemperature,DSCoC189211SofteningpointoC130GlasstransitiontemperatureoC4.2to7.0HeatoffusionkJmol-110.6SurfacetensionmNm-143.6Diffusioncoefficientofwatercm2s-12.83Yanagida,N;Matsuo,M,Polymer,vaporx10833,5,9961005,199

7、2.MECHANICAL&RHEOLOGICALPROPERTIESTensilestrengthMPa1424TensilemodulusMPa4001,200TensilestressatyieldMPa16Elongation%31ElasticmodulusMPa1,200(dry);300(8%water)Yakimets,I;Wellner,N;Smith,AC;Wilson,RH;Farhat,I;Mitchell,J,MechanicsMater.,39,50012,2007.Young’smodulusMPa700Yanagida,N

8、;Matsuo,M,Polymer,33,5,9961005,1992.Moistureabs