Actually I prepared diacid chloride, now i want to react that diacid chloride with ethylene diamine, but while adding, there is problem from my reaction. Large quantity of HCl gas evolved, and it condensed on top of the reactor, and it again enter into my reaction and it did not allow diamine to react with acid chloride. if i add NaOH+water simply salt is out, please tell me what to do.
thank you
http://www.nature.com/pj/journal/v14/n8/pdf/pj198282a.pdf?origin=publication_detail
http://www.xula.edu/chemistry/crs-orgleclab/Organic_Lab_2_2240L_Web_%20Files/36_Nylon_Experiment.pdf
http://classes.kvcc.edu/chm130/ORGANIC-POLYMERS-updated.pdf
http://faculty.georgetown.edu/jas2/NYLON.pdf
onlinelibrary.wiley.com/doi/10.1002/pol.1981.170190503/pdf
https://etd.ohiolink.edu/rws_etd/document/get/akron1153753352/inline
Dear Dajit, unfortunately I have no personal experience in polyamide synthesis and so far I studied mostly the ring opening synthesis from lactams, but I collected some papers for you which mention the use of acyl chlorides in polyamide synthesis. I hope you can use them. The closest ting is the synthesis of PA 6,10 using diacid dichlorides.
Try interfacial polycondensation. Dissolve the diamine in water (with 1 eq of NaOH) and the diacid chloride in toluene (or another organic solvent not miscible with water). Slowly add the second solution to the first and heat moderately (eg 40°C). Note that the PA thus obtained will have a low molar mass.
You should read the chapter 3 in the following book (p-135-193),
Synthetic Methods in Step-Growth Polymers Eds by M. E. Rogers and T. E. Lomg.
2003, John Wiley & Sons. Inc.
you can connect slow current of nitrogen gas with the reactor to let the HCL gas evolved to get out of the reactor
thanku everyone.
m getting product which might b polyamide, m getting peaks of co nh and cn in ftir, now i want to do nmr for my product confermation, and for that i want to dissolve it in some solvent, bt my product is not soluble in any solvents like dmf, dmso, again i tried combination of toluene and methenol.
plz tell msolution
thanku
https://www.researchgate.net/post/What_is_the_solvent_to_solubilize_the_Polyamideexpect_HFIP/1
onlinelibrary.wiley.com/doi/10.1002/pol.1957.1202310327/pdf
http://www.apriliaforum.com/forums/showthread.php?29113-found-nylon-solvent
https://answers.yahoo.com/question/index?qid=1006021002981
http://pubs.acs.org/doi/abs/10.1021/ie010566b?journalCode=iecred
Here is the wisdom of the net. I have no personal experience. But these are ugly solvents. Be careful.
Many polyamides are soluble in acetic acid (or formic acid) or phenol/methanol (35/15 by weight) or DMF or cyclohexanone. If no dissolution (even by warming), cross-linking can be suspected.
Try using Trifluoro acetic anhydride, Tetra hydrofuran(THF) combined Trifluoro acetic anhydride,Hexafluoroisopropanol
dear sir,
Claude Feyereisen and Jamal Babawati, Claude Feyereisen,Gyorgy Banhegyi, my product is soluble in water, i think its not polyamide, i think its nothing but salt, sir can u tell m are polyamides soluble in water also?
still m doing nmr of that sample
plz rply as soon as possible
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