000			01527nam a2200205Ia 4500
008			220216s9999 xx 000 0 und d
100			_aSakdapipanich Jitladda Tangpakdee
245		0	_aStructural characterisation of the small rubber particles in fresh Hevea latex
260			_bJournal of Rubber Research _c1999
300			_a160-168
520			_aThe rubbers from small and large rubber particles were separated from the serum and cream phases of centrifuged fresh Hevea latex, respectively. The small rubber particles (SRP) consist of rubber molecules showing a unimodel molecular weight distribution (MWD) with a peak-top value falling between the two peak values of the bimodal MWD observed in rubbers from the large rubber particles (LRP). The rubber in LRP from mature trees and SRP from seedlings are polyisoprene molecules terminated by phospholipids comprising branching points, while that in SRP are presumed to be linear molecules containing no phospholipid terminal. Comparative data of MW and structure between the SRP obtained from the serum phase of fresh latex and those of the SRP obtained from seedling latex are reported. The mechanism controlling MW in connection with the relationship among MW, branching, gel and particle size.
650			_aHevea latex
650			_aMolecular weight distribution
650			_aSmall rubber particles
650			_aStructural analysis
650			_aStructural characterisation
700			_aSuksujaritporn Sirisak
700			_aTanaka Yasuyuki
942			_cJS
999			_c69438 _d69438