Protection of colloidal suspensions with random poly(vinyl acetate) copolymers

W. Li; D. Gersappe; G. H. Ko; M. Asahi; Y. Takashima; T. Morimoto

doi:10.1021/la0018134

Protection of colloidal suspensions with random poly(vinyl acetate) copolymers

W. Li
, D. Gersappe
, G. H. Ko
, M. Asahi
, Y. Takashima
, T. Morimoto

Materials Science and Engineering

Stony Brook University
MC-RIC
Mitsubishi Chemical Holdings Corporation

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We present experimental and self-consistent field (SCF) modeling results on partially hydrolyzed poly-(vinyl acetate) (PVA) chains adsorbed on poly(vinyl chloride) (PVC) latex particles to determine the relationship between the structure of PVA and the steric force between the colloidal particles with adsorbed PVA. By measuring the surface pressure - area isotherms for a PVA-coated PVC latex monolayer at the air/water interface with the Langmuir - Blodgett surface balance, we found that both an increase in chain length and a decrease in degree of hydrolysis increase the repulsive energy between colloidal particles. Surface pressure - area isotherms also reveal that temperatures ranging from 20 to 50 °C have little effect on the repulsive energy between the colloidal particles. We also used this method to analyze the effect of PVA mixtures on colloidal stability. SCF modeling was used to analyze our experimental results. Our results showed excellent agreement between the SCF modeling results and the experimental results.

Original language	English
Pages (from-to)	3871-3876
Number of pages	6
Journal	Langmuir
Volume	17
Issue number	13
DOIs	https://doi.org/10.1021/la0018134
State	Published - Jun 26 2001

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title = "Protection of colloidal suspensions with random poly(vinyl acetate) copolymers",

abstract = "We present experimental and self-consistent field (SCF) modeling results on partially hydrolyzed poly-(vinyl acetate) (PVA) chains adsorbed on poly(vinyl chloride) (PVC) latex particles to determine the relationship between the structure of PVA and the steric force between the colloidal particles with adsorbed PVA. By measuring the surface pressure - area isotherms for a PVA-coated PVC latex monolayer at the air/water interface with the Langmuir - Blodgett surface balance, we found that both an increase in chain length and a decrease in degree of hydrolysis increase the repulsive energy between colloidal particles. Surface pressure - area isotherms also reveal that temperatures ranging from 20 to 50 °C have little effect on the repulsive energy between the colloidal particles. We also used this method to analyze the effect of PVA mixtures on colloidal stability. SCF modeling was used to analyze our experimental results. Our results showed excellent agreement between the SCF modeling results and the experimental results.",

author = "W. Li and D. Gersappe and Ko, \{G. H.\} and M. Asahi and Y. Takashima and T. Morimoto",

year = "2001",

month = jun,

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doi = "10.1021/la0018134",

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pages = "3871--3876",

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TY - JOUR

T1 - Protection of colloidal suspensions with random poly(vinyl acetate) copolymers

AU - Li, W.

AU - Gersappe, D.

AU - Ko, G. H.

AU - Asahi, M.

AU - Takashima, Y.

AU - Morimoto, T.

PY - 2001/6/26

Y1 - 2001/6/26

N2 - We present experimental and self-consistent field (SCF) modeling results on partially hydrolyzed poly-(vinyl acetate) (PVA) chains adsorbed on poly(vinyl chloride) (PVC) latex particles to determine the relationship between the structure of PVA and the steric force between the colloidal particles with adsorbed PVA. By measuring the surface pressure - area isotherms for a PVA-coated PVC latex monolayer at the air/water interface with the Langmuir - Blodgett surface balance, we found that both an increase in chain length and a decrease in degree of hydrolysis increase the repulsive energy between colloidal particles. Surface pressure - area isotherms also reveal that temperatures ranging from 20 to 50 °C have little effect on the repulsive energy between the colloidal particles. We also used this method to analyze the effect of PVA mixtures on colloidal stability. SCF modeling was used to analyze our experimental results. Our results showed excellent agreement between the SCF modeling results and the experimental results.

AB - We present experimental and self-consistent field (SCF) modeling results on partially hydrolyzed poly-(vinyl acetate) (PVA) chains adsorbed on poly(vinyl chloride) (PVC) latex particles to determine the relationship between the structure of PVA and the steric force between the colloidal particles with adsorbed PVA. By measuring the surface pressure - area isotherms for a PVA-coated PVC latex monolayer at the air/water interface with the Langmuir - Blodgett surface balance, we found that both an increase in chain length and a decrease in degree of hydrolysis increase the repulsive energy between colloidal particles. Surface pressure - area isotherms also reveal that temperatures ranging from 20 to 50 °C have little effect on the repulsive energy between the colloidal particles. We also used this method to analyze the effect of PVA mixtures on colloidal stability. SCF modeling was used to analyze our experimental results. Our results showed excellent agreement between the SCF modeling results and the experimental results.

UR - https://www.scopus.com/pages/publications/0035954468

U2 - 10.1021/la0018134

DO - 10.1021/la0018134

M3 - Article

AN - SCOPUS:0035954468

SN - 0743-7463

VL - 17

SP - 3871

EP - 3876

JO - Langmuir

JF - Langmuir

IS - 13

ER -

Protection of colloidal suspensions with random poly(vinyl acetate) copolymers

Abstract

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