Wiley
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Kinetic constants for styrene polymerization
Wiley - Tập 16 Số 82 - Trang 311-314 - 1955
AbstractValues for A′ and Ctr,m for styrene polymerization between 0 and 90° are
presented. These are important for accurate calculation of rates of initiation.
A study of graft copolymers. II. Viscosity and light‐scattering measurements
Wiley - Tập 33 Số 126 - Trang 193-205 - 1958
AbstractMeasurements of intrinsic viscosity and light scattering were made on
fractions of polymers prepared by the redox polymerization of styrene in the
presence of oxidized polystyrene or copolymers of skyrene and
4‐vinylcyclohexene‐1. For comparison, similar measurements were made on
fractions of linear polystyrene. The conclusion that branching had taken place
by graft polymerization was conf...
Preparation and properties of monodisperse branched polystyrene
Wiley - Tập 57 Số 165 - Trang 471-482 - 1962
AbstractModel branched polymers have been prepared by the reaction of relatively
monodisperse polystyryl lithium with silicon tetrachloride. The branched
molecules have been carefully characterized by light scattering and osmotic
pressure measurements. A study of the dilute solution properties of the branched
molecules has confirmed the theoretical development of the branching
coefficient, g′, by ...
Studies on the validity of the Einstein viscosity law and Stokes' law of sedimentation
Wiley - Tập 16 Số 81 - Trang 19-30 - 1955
AbstractUltracentrifugal studies on polystyrene latex particles (PSL) in
solutions of different densities prepared either from mixtures of H2O and D2O or
from various concentrations of sucrose in water yielded a value, by
interpolation, of 1.0520 for the density of solution in which the particles
neither sediment nor float. Considerations of these results plus the nature of
the particles lead to t...
The fractionation of polyethylene
Wiley - Tập 28 Số 117 - Trang 341-353 - 1958
AbstractFour of the new high‐density polyethylenes and one conventional
high‐pressure, low‐density polyethylene have been fractionated by a fractional
solution technique. The number‐average molecular weights, infrared absorption
spectra, and densities of the fractions were measured by standard techniques,
modified where necessary to accommodate the low solubility of the new
high‐density polyethyle...
Viscosity and glass temperature relations for polymer‐diluent systems
Wiley - Tập 50 Số 154 - Trang 549-556 - 1961
AbstractExpressions are derived from free volume considerations which predict
the concentration dependence of viscosity and glass temperature for
polymer‐diluent systems. Experimental data for several systems were examined and
general agreement with theory was found over broad ranges of concentration.
Particular emphasis is placed on the limited amount of information required for
the application o...
Linear method for determining monomer reactivity ratios in copolymerization
Wiley - Tập 5 Số 2 - Trang 259-262 - 1950
Improved relationships for diffusion and sedimentation constants and for viscosity and streaming birefringence of solutions of polymers
Wiley - Tập 14 Số 74 - Trang 193-208 - 1954
AbstractFor the description of the practical properties of a large number of
linear polymer molecules as well as for the discussion of the various mean
parameters of the individual chain molecule, the model usually employed to
represent the molecule consists of N m straight line chain elements of length A
m statistically joined to each other (straight element model). For the
construction of large‐...
The infrared spectrum of polyethylene terephthalate. I The effect of crystallization
Wiley - Tập 38 Số 134 - Trang 479-495 - 1959
AbstractFilms of amorphous polyethylene terephthala were drawn and heated to
various extents. Intensity change of the infrared spectral bands resulting from
these treatments were followed. There are more than seven bands which change
their intensities by drawing, and sixteen bands affected by heat treatment.
Exactly the same changes are also observed in several aromatic esters of
ethylene glycol. ...
Interfacial polycondensation. I.
Wiley - Tập 40 Số 137 - Trang 289-297 - 1959
AbstractInterfacial polycondensation is a rapid, irreversible polymerization at
the interface between water containing one difunctional intermediate and an
inert immiscible organic solvent containing a complementary difunctional
reactant. It is based on the Schotten‐Baumann reaction in which acid chlorides
are reacted with compounds containing active hydrogen atoms (OH, NH and SH).
A large numb...
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