環(huán)己酮—異丁醛及其共聚樹脂的合成與表征.pdf

1、長沙理工大學碩士學位論文環(huán)己酮異丁醛及其共聚樹脂的合成與表征姓名：曹嬌申請學位級別：碩士專業(yè)：有機化學指導教師：譚淑珍；張一甫20120518ABSTRACTKetonealdehyderesinisused鴰anaddkivetoimprovethehardness，glossandadhesionofthecoating／inLCyclohexanoneisobutyraldehyde(CI)resinandcyclohexanon

2、eformalde—hyde—isobutyraldehyde(CFI)resinaretwonovelproducts，andtherearcrarelyreportsaboutthemInthispaperCIandCFIresinsWeresynthesizedfromcyclohexanone，isobutyraldehyde，formaldehyde，andsodiummethylateWasused笛catalystThee

3、ffectofmolarratioofmaterials，theamountofcatalystandreactiontimeonpropertiesandyieldsoftheresinswasstudiedFTIRand1HNMRwereusedtOcharacterizethestructuresoftheresinsThemainresearchcontentsandachievementsarelisted嬲follows：(

4、1)Thecyclohexanoneisobutyraldehyde(cDresinwith900dyellowingresistanceandsolubilityincommonorganicsolventsWaspreparedfromcyclohexanoneandisobutyraldehyde，andsodiummethylatewasusedascatalystFTIRand1HNMRresultsofCIresinshow

5、thattherearehydroxylgroupsandCH(CH3)2groupsinitssUucture，andthealdehydegroupsdisappearItissuggestedthataHofcyclohexanonehasreacted謝廿lisobutyraldehydeviathesynthesisreactionWhenthemolarratioofisobutyraldehydetOcyclohexano

6、neincreasedthehydroxylvalueoftheresinincreasedthekinematicviscosityandyieldoftheresinrnstlyincreasedandthendecreased；Whentheamountofcatalystincreasedorthereactiontimeexpandedthehydroxylvaluedecreasedthekinematicviscosity

7、andyieldincreasedTheeffectofevaporationtimeonthehydroxylvalueandkinematicviscosityoftheresinwassimilartothatofthecatalystConsideringtheimpactofabovementionedfactorsonthehydroxylvalue，kinematicviscosityandyield，theoptimal

8、reactionconditionWaschosen嬲follows：themolarratioofisobutyraldehydetocyclohexanonewas13，theamountofcatalystwas60wt％，reactiontimeWas9handevaporationtimeWas15hTheobtainedCIresinhastheyieldof523％，thekinematicviscosityof778mm

9、2／s，thehydroxylvalueof4360mgKOH／gandthenumberaveragemolecularweightof4699／m01(2)Thecyclohexanoneformaldehydeisobutyraldehyde(CFI)resinWassynthesizedfromcyclohexanoneformaldehydeandisobutyraldehyde，andsodiummethylatewasus