Surface Free Energy Components by Polar/Dispersion and Acid—Base Analyses; and Hansen Solubility Parameters for Various Polymers
(sort by dispersion descending)

  Polar/Dispersion Acid-Base Hansen Parameters
Name(1)
ascendingdescending		 CAS #(2)
ascending descending		 γS(3)
ascending descending		 γSd(4)
ascending descending		 γSP(5)
ascending descending		 γS(6)
ascending descending		 γSLW(7)
ascending descending		 γSAB(8)
ascending descending		 γS+ (9)
ascending descending		 γS- (10)
ascending descending		 δ(11)
ascending descending		 δD(12)
ascending descending		 δP(13)
ascending descending		 δH(14)
ascending descending		 Ro(15)
ascending descending
Nylon 6,12 24936-74-1 67.0 62.0 4.7 - - - - - - - - - -
  -(1) -(1) -(1)
Polyacetylene (polyethyne) - 51.5 48.2 3.4 - - - - - - - - - -
  0.71(2) 1.77(2) 1.06(2)
Polyxylylene (parylene) - 46.3 45.7 0.6 - - - - - - - - - -
  -(1) -(1) -(1)
Polyphenylene sulfide (PPS) 26125-40-6 46.8 44.0 2.8 - - - - - 19.8 18.7 5.3 3.7 6.7
  3.29(3) 3.50(3) 0.71(3) -(1) -(1) -(1) -(1)
Polybutylene terephthalate (PBT) 26062-94-2 46.0 42.0 4.1 47.1 45.8 1.3 0.8 0.6 - - - - -
  0.24(4) 2.83(4) 2.92(4) -(1) -(1) -(1) -(1) -(1)
Poly(hexachlorobutadiene) - 41.5 40.7 0.8 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinylidene chloride (PVDC, Saran) 9002-85-1 45.3 40.4 4.9 40.3 40.4 -0.1 0.0 2.6 23.1 19.0 9.6 9.0 5.8
  0.38(4) 2.93(4) 2.91(4) -(1) -(1) -(1) -(1) -(1) 1.98(2) 0.64(2) 1.70(2) 2.62(2)
Polyethersulfone (PES) 25154-01-2 47.0 40.0 7.0 - - - - - 21.0 18.3 8.2 6.4 6.3
  -(1) -(1) -(1) 0.91(6) 3.10(6) 2.33(6) 2.61(6)
Polychloroprene 9010-98-4 43.6 38.8 4.8 - - - - - - - - - -
  0.00(2) 0.14(2) 0.14(2)
Ethyl methacrylate (EMA) 97-63-2 42.0 38.8 3.2 - - - - - - - - - -
  1.06(2) 0.42(2) 0.64(2)
Polycarbonate (PC) 24936-68-3 43.4 38.2 5.2 - - - - - 22.2 19.6 8.8 5.7 10.2
  8.21(3) 9.24(3) 3.69(3) 1.75(3) 2.58(3) 1.04(3) 4.06(3)
Polyimide (PI) 25038-81-7 47.0 38.2 8.8 44.0 42.5 1.5 0.1 6.0 - - - - -
  8.49(2) 16.8(2) 8.27(2) -(1) -(1) -(1) -(1) -(1)
Polyvinyl chloride (PVC) 9002-86-2 40.1 37.4 2.8 39.8 38.7 1.0 0.1 3.1 20.0 16.8 8.9 6.1 8.5
  3.80(9) 3.93(10) 2.36(9) 4.76(6) 4.33(6) 0.96(6) 0.15(6) 2.31(6) 1.65(5) 1.95(5) 1.78(5) 3.94(5)
Epoxies - 45.0 37.2 7.8 - - - - - 24.1 19.2 10.9 9.6 11.1
  4.63(5) 4.68(5) 7.00(5) 2.53(13) 2.37(13) 2.66(13) 3.98(13)
Polystyrene (PS) 9003-53-6 41.7 37.0 5.0 36.9 37.9 -0.9 0.1 2.2 23.9 22.8 5.8 4.3 12.7
  1.24(8) 3.47(9) 2.84(8) 5.80(3) 4.32(3) 1.68(3) 0.20(3) 2.72(3) -(1) -(1) -(1) -(1)
Polyethylene terephthalate (PET) 25038-59-9 43.7 36.6 7.2 45.3 42.6 1.8 0.3 3.7 20.8 18.7 6.3 6.7 6.5
  3.42(16) 4.64(16) 3.42(16) 0.78(2) 2.83(2) 0.71(2) 0.21(2) 1.06(2) 1.25(8) 2.03(8) 2.80(8) 3.36(8)
Nylon 6,6 32131-17-2 44.8 36.3 9.8 40.2 36.9 3.3 1.5 12.1 25.8 17.2 9.9 16.5 4.4
  3.07(8) 5.63(9) 4.03(8) 3.61(2) 0.71(2) 2.90(2) 2.11(2) 13.5(2) 1.11 1.10 6.80 1.24
2-Hydroxyethyl methacrylate (HEMA, ethylene glycol monoacrylate) 867-77-9 56.8 36.3 20.5 - - - - - - - - - -
  1.20(2) 0.49(2) 0.71(2)
Polyetheretherketone (PEEK) 29658-26-2 42.1 36.2 5.9 - - - - - - - - - -
  -(1) -(1) -(1)
Polyphenylene oxide (PPO) 25134-01-4 46.0 36.0 10.0 - - - - - 20.1 17.9 3.1 8.5 8.6
  -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Poly(L-alanine) 25191-17-7 45.2 36.0 9.2 - - - - - - - - - -
  -(1) -(1) -(1)
Polymethyl methacrylate (PMMA, acrylic, plexiglas) 9011-14-7 43.5 35.9 7.8 42.2 41.6 0.6 0.0 11.1 21.3 17.9 10.1 5.4 11.0
  2.88(14) 4.09(13) 3.79(13) 2.97(11) 2.36(11) 0.89(11) 0.04(11) 5.84(11) 1.37(5) 4.46(5) 3.73(5) 4.63(5)
Acrylonitrile butadiene styrene (ABS) 9003-56-9 43.6 35.8 8.0 38.6 39.4 -0.8 0.9 3.7 19.2 17.0 5.7 6.8 9.4
  4.83(5) 2.77(5) 2.55(5) 4.81(2) 0.00(2) 4.88(2) 0.14(2) 2.76(2) 0.92(2) 4.17(2) 0.49(2) 2.19(2)
Polymethyl acrylate (PMA) 25087-26-7 41.4 35.6 5.8 - - - - - - - - - -
  0.85(4) 4.12(4) 4.45(4)
Polypropylene isophthalate - 49.3 35.1 14.2 - - - - - - - - - -
  -(1) -(1) -(1)
Polybutylene isophthalate - 47.8 34.9 12.9 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinyl fluoride (PVF) 24981-14-4 38.6 34.0 4.6 37.5 35.6 1.9 2.8 6.0 - - - - -
  2.85(5) 5.72(5) 4.38(5) 1.30(3) 2.08(3) 0.85(3) 4.73(3) 6.62(3)
Polyisobutylene (PIB, butyl (rubber) 9003-27-4 33.6 33.6 0.0 25.0 25.0 0.0 0.0 0.0 17.1 16.4 1.7 4.7 7.9
  -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) 1.26(6) 2.15(6) 2.08(6) 2.46(6)
Nylon 12 24937-16-4 38.2 33.1 5.2 41.3 37.0 4.3 0.6 7.6 22.2 18.5 8.1 9.1 6.3
  3.46(2) 3.96(2) 0.42(2) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Nylon 6 (polycaprolactum, aramid 6) 25038-54-4 42.7 33.1 9.6 45.3 42.5 2.8 0.2 9.6 20.3 17.0 3.4 10.6 5.1
  6.08(2) 2.69(2) 3.39(2) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Polyethylene (PE) 9002-88-4 34.2 32.8 1.4 31.7 31.5 0.2 0.1 0.9 17.6 16.8 3.8 3.8 6.6
  2.45(19) 2.89(19) 1.73(19) 2.86(10) 2.93(10) 0.27(10) 0.19(10) 1.39(10) 0.88(7) 1.94(7) 2.52(7) 2.84(7)
Aluminum foil (b) 7429-90-5 41.2 31.7 9.5 - - - - - - - - - -
  2.47(2) 0.57(2) 1.91(2)
Polypropylene glycol (PPG, polypropylene oxide) 25322-69-4 31.7 31.3 0.4 - - - - - - - - - -
  -(1) -(1) -(1)
Cellulose acetate (CA) 9004-35-7 42.0 31.0 11.1 43.5 39.0 4.5 0.3 22.2 23.5 17.1 13.1 9.4 10.6
  5.44(2) 1.84(2) 3.61(2) 6.42(4) 4.20(4) 3.25(4) 0.33(4) 2.71(4) 1.58(4) 4.41(4) 3.81(4) 2.96(4)
Polyurethanes - 39.3 30.8 8.6 30.0 30.9 -0.9 0.02 10.0 22.8 18.8 10.0 8.2 9.8
  2.60(8) 3.63(8) 3.95(8) -(1) -(1) -(1) -(1) -(1) 1.53(11) 2.54(11) 3.09(11) 3.48(11)
Polyethylene oxide (PEO, PEG, polyethylene glycol) 25322-68-3 42.8 30.8 12.1 45.1 44.3 0.8 0.02 58.0 - - - - -
  0.07(2) 0.21(2) 0.14(2) 1.59(4) 1.34(4) 1.60(4) 0.03(4) 10.2(4)
Polyethyl acrylate (PEA) 9003-32-1 37.0 30.6 6.4 - - - - - - - - - -
  -(1) -(1) -(1)
Polysulfone (PSU) 25135-51-7 46.6 30.4 16.2 - - - - - 21.5 18.5 8.5 7.0 9.4
  -(1) -(1) -(1) 2.17(3) 2.61(3) 1.12(3) 1.69(3)
Polyvinyl hexadecanoate - 30.9 29.8 1.1 - - - - - - - - - -
  -(1) -(1) -(1)
Cellophane 9005-81-6 45.4 29.8 15.6 - - - - - 28.5 16.1 18.5 14.5 7.3
  -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Ethylene-propylene-diene-monomer (EPDM) 25038-36-2 35.5 29.7 5.8 - - - - - - - - - -
  -(1) -(1) -(1)
Poly 2-ethylhexyl acrylate 9003-77-4 30.1 28.9 1.3 - - - - - - - - - -
  0.90(3) 1.57(3) 0.78(3)
Poly n-butyl acrylate 9003-49-0 32.2 28.6 3.6 - - - - - - - - -
  2.12(2) 2.55(2) 0.42(2)
Thermoplastic polyolefin (TPO) - 30.9 28.5 2.3 - - - - - - - - - -
  3.45(11) 2.80(11) 3.63(11)
Paraffin 8002-74-2 28.1 28.1 0.0 - - - - - - - - - -
  3.71(7) 3.71(7) 0.00(7)
Nylon 2 (polyglycine) 25718-94-9 50.1 27.9 22.2 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinyl dodecanoate - 29.1 27.8 1.3 - - - - - - - - - -
  -(1) -(1) -(1)
Nylon 4 24938-56-5 48.5 27.8 20.7 - - - - - - - - - -
  -(1) -(1) -(1)
Polypropylene (PP) (a) 30.1 27.7 2.4 32.0 31.7 0.3 0.2 0.4 18.0 17.7 2.9 1.2 6.2
  2.42(11) 2.46(11) 2.45(11) 3.99(8) 3.56(8) 0.76(8) 0.45(8) 0.76(8) 0.46(2) 2.80(2) 1.71(2) 1.76(2)
Poly(hexyl methacrylate) 25087-17-6 30.0 27.6 2.5 - - - - - - - - - -
  0.00(2) 0.78(2) 0.78(2)
Polytetramethylene oxide - 31.9 27.4 4.5 - - - - - - - - - -
  -(1) -(1) -(1)
Poly n-butyl methacrylate (PnBMA) 95608-33-7 32.3 27.3 5.0 - - - - - 18.4 16.0 6.2 6.6 9.5
  1.56(5) 2.59(5) 1.78(5) -(1) -(1) -(1) -(1)
Polytetrahydrofuran (PTHF) 25190-06-1 31.9 27.2 4.7 - - - - - - - - - -
  0.00(2) 0.28(2) 0.28(2)
Polyvinyl decanoate - 28.9 27.1 1.8 - - - - - - - - - -
  -(1) -(1) -(1)
Polyethyl methacrylate (PEMA) 9003-42-3 35.9 26.9 9.0 - - - - - 20.0 17.5 8.5 4.7 9.6
  -(1) -(1) -(1) 1.34(3) 0.62(3) 3.82(3) 1.99(3)
Poly t-butyl methacrylate (PtBMA) 25189-00-9 30.5 26.5 4.0 - - - - - - - - - -
  0.00(2) 0.42(2) 0.42(2)
Polyvinyl proprionate 25035-84-1 34.0 26.5 7.5 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinyl octanoate - 28.7 26.5 2.2 - - - - - - - - - -
  -(1) -(1) -(1)
Polyacrylamide 9003-05-8 52.3 26.5 25.8 - - - - - - - - - -
  -(1) -(1) -(1)
Poly iso-butyl methacrylate (PIBMA) 9011-15-8 30.9 26.3 4.7 - - - - - 20.0 18.3 4.9 6.3 9.4
  0.00(2) 0.49(2) 0.49(2) 2.11(3) 0.93(3) 5.12(3) 2.10(3)
Polyoxymethylene (POM, polyacetal, polymethylene oxide) 24969-26-4 39.0 26.2 12.8 - - - - - - - - - -
  7.99(2) 6.15(2) 1.84(2)
Polyvinyl butyrate - 31.1 25.8 5.3 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinylidene fluoride (PVDF) 24937-79-9 34.4 25.7 8.7 30.5 28.6 1.9 10.5 0.08 23.2 17.0 12.1 10.2 4.1
  4.17(4) 4.64(4) 4.81(4) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Polyvinyl hexanoate - 28.9 25.1 3.8 - - - - - - - - - -
  -(1) -(1) -(1)
Polyvinyl acetate (PVA) 9003-20-7 37.7 24.8 13.0 44.5 42.6 1.9 0.04 22.3 25.7 20.9 11.3 9.7 13.7
  2.89(5) 1.65(5) 1.53(5) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Polydiethylsiloxane (PDES) 63148-61-8 25.7 23.8 1.9 - - - - - - - - - -
  -(1) -(1) -(1)
Hexatriacontane 630-06-8 23.7 23.6 0.1 - - - - - - - - - -
  6.71(3) 6.78(3) 0.12(3)
Polychlorotrifluoroethylene 9002-83-9 29.5 22.6 6.9 - - - - - 16.5 15.6 2.5 4.7 5.8
  1.78(3) 1.19(3) 2.89(3) 2.10(3) 1.46(3) 2.44(3) 1.56(3)
Polytrifluoroethylene 24980-67-4 27.5 22.0 5.4 25.4 23.1 2.3 1.8 0.7 - - - - -
  3.65(3) 2.10(3) 3.20(3) -(1) -(1) -(1) -(1) -(1)
Polytetrafluoroethylene (PTFE) 9002-84-0 22.2 21.3 0.9 20.8 19.9 0.9 0.1 1.6 16.7 16.2 1.8 3.4 3.9
  2.54(9) 2.71(10) 0.96(9) 0.99(2) 0.35(2) 1.34(2) 0.20(2) 2.26(2) -(1) -(1) -(1) -(1)
Polydimethylsiloxane (PDMS) 9016-00-6 205 19.2 1.3 - - - - - - - - - -
  1.16(6) 1.48(6) 0.66(6)
Fluorinated ethylene polypropylene (FEP) 25067-11-2 19.9 17.1 2.8 17.9 17.9 0.0 0.0 0.0 19.6 19.0 4.0 3.0 4.0
  2.90(3) 2.66(3) 2.51(3) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1) -(1)
Poly(heptadecafluorooctyl methacrylate) - 15.3 13.9 1.4 - - - - - - - - - -
  -(1) -(1) -(1)
Poly(hexafluoropropylene) - 14.9 13.6 1.3 - - - - - - - - - -
  2.10(3) 1.48(3) 1.55(3)
Polyepichlorohydrin 24969-06-0 - - - - - - - - - - - - -
 
Poly(dimethylaminoethylmethacrylate) - - - - - - - - - - - - - -
 
Polybutadiene 9003-17-2 - - - - - - - - 18.0 17.5 2.3 3.4 6.6
  -(1) -(1) -(1) -(1)
Polyvinyl pyrrolidone (PVP) 9003-39-8 - - - 46.0 43.4 2.6 0.2 22.5 - - - - -
  3.61(2) 0.00(2) 3.61(2) 0.28(2) 10.2(2)
Polyvinyl formal 63450-15-7 - - - - - - - - - - - - -
 
Polyvinyl ethyl ether (polyethoxyethylene) 25104-37-4 - - - - - - - - - - - - -
 
Polyvinyl butyral 63148-65-2 - - - - - - - - 24.6 19.1 9.5 12.2 10.0
  0.92(3) 4.50(3) 1.65(3) 1.53(3)
Polyvinyl alcohol (PVOH) 25213-24-5 - - - 42.0 42.0 0.0 0.0 37.0 25.2 14.7 14.1 14.9 10.5
  -(1) -(1) -(1) -(1) -(1) 2.51(4) 2.13(4) 2.18(4) 1.38(4)
Polystearyl methacrylate 25639-21-8 - - - - - - - - - - - - -
 
Poly n-propyl methacrylate 2210-79-9 - - - - - - - - - - - - -
 
Poly(phosphazene) - - - - - - - - - - - - - -
 
Polyphenyl methacrylate - - - - - - - - - - - - - -
 
Polyoctyl methacrylate - - - - - - - - - - - - - -
 
Poly(nonafluoroisobutyl acrylate) - - - - - - - - - - - - - -
 
Polymethylphenylsilylene - - - - - - - - - - - - - -
 
Polymethylphenylsiloxane 9005-12-3 - - - - - - - - - - - - -
 
Poly a-methyl styrene 25014-31-7 - - - - - - - - - - - - -
 
Poly(4-methyl pentene-1) - - - - - - - - - - - - - -
 
Polymethacrylonitrile (PMAN) 25067-61-2 - - - - - - - - 23.7 17.2 14.4 7.6 3.8
  -(1) -(1) -(1) -(1)
Polylauryl methacrylate 25719-52-2 - - - - - - - - - - - - -
 
Polyisoprene (PIP) 9003-31-0 - - - - - - - - 18.4 18.1 2.4 2.3 10.3
  2.32(3) 1.40(3) 2.66(3) 3.40(3)
Poly(2-hydroxyethyl methacrylate) 24249-16-5 - - - - - - - - - - - - -
 
Poly(heptafluoroisopropyl methacrylate) - - - - - - - - - - - - - -
 
Poly(heptafluoroisopropyl acrylate) - - - - - - - - - - - - - -
 
Poly 2-ethylhexyl methacrylate 25719-51-1 - - - - - - - - - - - - -
 
Polyetherimide (PEI) 61128-46-9 - - - - - - - - 19.8 17.7 6.0 6.4 4.8
  1.07(5) 1.14(5) 2.43(5) 1.70(5)
Polybenzyl methacrylate 25085-83-0 - - - - - - - - - - - - -
 
Polyacrylonitrile (PAN) 25014-41-9 - - - - - - - - 27.4 21.7 14.1 9.1 10.9
  -(1) -(1) -(1) -(1)
Phenoxy resin 26402-79-9 - - - - - - - - - - - - -
 
Nylon 11 25587-80-8 - - - - - - - - 20.5 17.0 4.4 10.6 5.1
  -(1) -(1) -(1) -(1)
Nylon 10,10 - - - - - - - - - - - - - -
 
Nylon 9,9 - - - - - - - - - - - - - -
 
Nylon 8,8 - - - - - - - - - - - - - -
 
Nylon 7,7 - - - - - - - - - - - - - -
 
Nylon 6,10 9008-66-6 - - - - - - - - - - - - -
 
Nitrocellulose (cellulose nitrate) 9004-70-0 - - - 45.1 44.8 0.3 0.01 13.3 23.5 16.2 14.1 9.5 10.7
  0.14(2) 0.21(2) 0.35(2) 0.01(2) 3.75(2) 1.06(2) 0.85(2) 1.06(2) 1.13(2)
Nafion 31175-20-9 - - - - - - - - - - - - -
 
Ethyl cellulose 9004-57-3 - - - 28.6 27.4 1.2 0.04 8.6 20.4 19.0 5.6 4.9 7.9
  -(1) -(1) -(1) -(1) -(1) 1.56(2) 1.84(2) 1.41(2) 2.83(2)
Eicosane 112-95-8 - - - - - - - - - - - - -
 
Cellulose triacetate 9012-09-3 - - - - - - - - - - - - -
 
Cellulose acetate butyrate (CAB) 9004-36-8 - - - - - - - - 22.2 17.2 13.8 2.8 12.6
  -(1) -(1) -(1) -(1)
Aramid (Kevlar) 26125-61-1 - - - - - - - - - - - - -
 
Amorphous fluoropolymer (Teflon AF) - - - - - - - - - - - - - -
 

(a) Atactic PP CAS #9003-08-0; isotactic PP CAS #25085-53-4To top of page

(b) Aluminum foil, while obviously not a polymer, is included due to its widespread use in package converting and other industries.To top of page

(1) Names which are most widely used to describe the material or family of materials (e.g., polyurethanes and epoxies) at hand are preferred here. Commonly used acronyms and synonyms are also shown.To top of page

(2) CAS (Chemical Abstract Series) numbers are shown where available. In a number of instances, more than one CAS number is assigned to a given polymer — in some cases the details and nuances of these divergences are not at all clear. We have tried to reference the CAS number which appears to have the widest use with reference to the solid state properties of the given polymer.To top of page

(3) γs: Total surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in polar/dispersion analyses.To top of page

(4) γsd: Dispersion component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in polar/dispersion analyses.To top of page

(5) γsp: Polar component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in polar/dispersion analyses.To top of page

(6) γs: Total surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in acid—base analyses.To top of page

(7) γsLW: Lipschitz—van der Waals (non-polar) component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in acid—base analyses.To top of page

(8) γsAB: Lewis acid—base interaction component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in acid—base analyses.To top of page

(9) γs-: Base polarity (electron-donor) component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in acid—base analyses.To top of page

(10) γs+: Acid polarity (electron-acceptor) component of surface free energy in mJ/m2 (equivalent to dynes/cm), as reported in acid—base analyses. To top of page

(11) δ: Total Hansen solubility parameter (square root of the sum of squares of the average values for dispersion, polar, and hydrogen bonding components), in MPa1/2 (equivalent to joules/cubic centimeter; 2.0455 x (cal/cc)1/2) @ 20-25oC (293.15-298.15 K). All data from Hansen Solubility Parameters: A User's Handbook, 2nd Ed., C.M. Hansen, CRC Press, Boca Raton, FL, 2007.To top of page

(12) δD: Hansen dispersion solubility parameter, in MPa1/2 (equivalent to joules/cubic centimeter; 2.0455 x (cal/cc)1/2) @ 20-25oC (293.15-298.15 K). All data from Hansen Solubility Parameters: A User's Handbook, 2nd Ed., C.M. Hansen, CRC Press, Boca Raton, FL, 2007.To top of page

(13) δP: Hansen polar solubility parameter, in MPa1/2 (equivalent to joules/cubic centimeter; 2.0455 x (cal/cc)1/2) @ 20-25oC (293.15-298.15 K). All data from Hansen Solubility Parameters: A User's Handbook, 2nd Ed., C.M. Hansen, CRC Press, Boca Raton, FL, 2007.To top of page

(14) δH: Hansen hydrogen bonding solubility parameter, in MPa1/2 (equivalent to joules/cubic centimeter; 2.0455 x (cal/cc)1/2) @ 20-25oC (293.15-298.15 K). All data from Hansen Solubility Parameters: A User's Handbook, 2nd Ed., C.M. Hansen, CRC Press, Boca Raton, FL, 2007.To top of page

(15) Ro: Interaction radius. All data from Hansen Solubility Parameters: A User's Handbook, 2nd Ed., C.M. Hansen, CRC Press, Boca Raton, FL, 2007.To top of page