Phase separation in dilute solutions of poly (N-isopropylacrylamide)

被引：89

作者：

Gorelov, AV ^{[1
]}

DuChesne, A ^{[1
]}

Dawson, KA ^{[1
]}

机构：

[1] NATL UNIV IRELAND UNIV COLL DUBLIN,DEPT CHEM,CTR COLLOID SCI & BIOMAT,DUBLIN 4,IRELAND

来源：

PHYSICA A | 1997年 / 240卷 / 3-4期

关键词：

polymer solution; aggregate; collapse; phase coexistence;

D O I：

10.1016/S0378-4371(97)00192-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The appearance of spherical particles resulting from phase separation in dilute solutions of poly(N-isopropylacrylamide) has been observed by dynamic light scattering (DLS). The particles have a relatively narrow size distribution. The size of particles increases with increasing concentration of polymer, and decreasing heating speed. Electron microscopy confirms the existence of spherical particles with size and polydispersity in agreement with DLS.

引用

页码：443 / 452

页数：10

共 24 条

[1] POLYMER COLLAPSE IN DILUTE-SOLUTION - EQUILIBRIUM AND DYNAMICAL ASPECTS
ALLEGRA, G
GANAZZOLI, F
[J]. JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (01) : 397 - 412
[2] MEASUREMENT OF DIFFUSION-COEFFICIENTS OF POLYDISPERSE SOLUTES BY PHOTON CORRELATION SPECTROSCOPY
BROWN, JC
PUSEY, PN
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1974, 7 (02) : L31 - L35
[3] DYNAMIC LIGHT-SCATTERING STUDY OF INTERNAL MOTIONS OF POLYMER COILS IN DILUTE-SOLUTION
CHU, B
WANG, ZL
YU, JQ
[J]. MACROMOLECULES, 1991, 24 (26) : 6832 - 6838
[4] 2-STAGE KINETICS OF SINGLE-CHAIN COLLAPSE - POLYSTYRENE IN CYCLOHEXANE
CHU, B
YING, QC
GROSBERG, AY
[J]. MACROMOLECULES, 1995, 28 (01) : 180 - 189
[5] TRANSITION OF POLYSTYRENE IN CYCLOHEXANE FROM THE THETA TO THE COLLAPSED STATE
CHU, B
XU, RL
ZUO, J
[J]. MACROMOLECULES, 1988, 21 (01) : 273 - 274
[6] de Gennes P.G., 1988, SCALING CONCEPTS POL
[7] MOLECULAR-WEIGHT DETERMINATION BY LIGHT SCATTERING
DEBYE, P
[J]. JOURNAL OF PHYSICAL AND COLLOID CHEMISTRY, 1947, 51 (01) : 18 - 32
[8] COLLAPSE OF A FLEXIBLE POLYMER CHAIN-II
DEGENNES, PG
[J]. JOURNAL DE PHYSIQUE LETTRES, 1978, 39 (17): : L299 - L301
[9] PHASE-TRANSITION OF AQUEOUS-SOLUTIONS OF POLY(N-ISOPROPYLACRYLAMIDE) AND POLY(N-ISOPROPYLMETHACRYLAMIDE)
FUJISHIGE, S
KUBOTA, K
ANDO, I
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (08) : 3311 - 3313
[10] ANALYSIS OF DYNAMIC LIGHT-SCATTERING OF POLY(N-ISOPROPYLACRYLAMIDE) ACROSS THE COLLAPSE TRANSITION
GORELOV, AV
VASILEVA, LN
DUCHESNE, A
TIMOSHENKO, EG
KUZNETSOV, YA
DAWSON, KA
[J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS, 1994, 16 (07): : 711 - 720

← 1 2 3 →